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security</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Hardware security and biometrics' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SECA2AF84C27' onClick='' > <span class='name'>Hardware security and biometrics</span> </button> <ul id='node-children-SECA2AF84C27' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Hardware security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf020d1074/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf020d1074/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secf020d1074/1/web/1' id='toc-item-SECF020D1074' data-tocid='SECF020D1074' > <span class='name'>Hardware security overview</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Apple SoC security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec87716a080/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec87716a080/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec87716a080/1/web/1' id='toc-item-SEC87716A080' data-tocid='SEC87716A080' > <span class='name'>Apple SoC security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure Enclave' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec59b0b31ff/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec59b0b31ff/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec59b0b31ff/1/web/1' id='toc-item-SEC59B0B31FF' data-tocid='SEC59B0B31FF' > <span class='name'>Secure Enclave</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Face ID and Touch ID' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC46AC694C7' onClick='' > <span class='name'>Face ID and Touch ID</span> </button> <ul id='node-children-SEC46AC694C7' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Face ID and Touch ID security' class='toc-item' 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data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sece151358d1/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sece151358d1/1/web/1' id='toc-item-SECE151358D1' data-tocid='SECE151358D1' > <span class='name'>Facial matching security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Uses for Face ID and Touch ID' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc5227ff3c/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc5227ff3c/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc5227ff3c/1/web/1' id='toc-item-SECC5227FF3C' data-tocid='SECC5227FF3C' > <span class='name'>Uses for Face ID and Touch ID</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure intent and connections to the Secure Enclave' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec7a94f7d1e/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec7a94f7d1e/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec7a94f7d1e/1/web/1' id='toc-item-SEC7A94F7D1E' data-tocid='SEC7A94F7D1E' > <span class='name'>Secure intent and connections to the Secure Enclave</span> </a> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Hardware microphone disconnect' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secbbd20b00b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secbbd20b00b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secbbd20b00b/1/web/1' id='toc-item-SECBBD20B00B' data-tocid='SECBBD20B00B' > <span class='name'>Hardware microphone disconnect</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Express Cards with power reserve' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec90cd29d1f/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec90cd29d1f/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec90cd29d1f/1/web/1' id='toc-item-SEC90CD29D1F' data-tocid='SEC90CD29D1F' > <span class='name'>Express Cards with power reserve</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='System security' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SECBE51BDF7A' onClick='' > <span class='name'>System security</span> </button> <ul id='node-children-SECBE51BDF7A' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='System security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec114e4db04/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec114e4db04/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec114e4db04/1/web/1' id='toc-item-SEC114E4DB04' data-tocid='SEC114E4DB04' > <span class='name'>System security overview</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure boot' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SECBB300CA1B' onClick='' > <span class='name'>Secure boot</span> </button> <ul id='node-children-SECBB300CA1B' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Boot process for iPhone and iPad devices' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb3000f149/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb3000f149/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb3000f149/1/web/1' id='toc-item-SECB3000F149' data-tocid='SECB3000F149' > <span class='name'>Boot process for iPhone and iPad devices</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Memory safe iBoot implementation' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec30d8d9ec1/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec30d8d9ec1/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec30d8d9ec1/1/web/1' id='toc-item-SEC30D8D9EC1' data-tocid='SEC30D8D9EC1' > <span class='name'>Memory safe iBoot implementation</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Mac computers with Apple silicon' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC3C46C619D' onClick='' > <span class='name'>Mac computers with Apple silicon</span> </button> <ul id='node-children-SEC3C46C619D' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Boot process' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secac71d5623/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secac71d5623/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secac71d5623/1/web/1' id='toc-item-SECAC71D5623' data-tocid='SECAC71D5623' > <span class='name'>Boot process</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Boot modes' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec10869885b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec10869885b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec10869885b/1/web/1' id='toc-item-SEC10869885B' data-tocid='SEC10869885B' > <span class='name'>Boot modes</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Paired recoveryOS restrictions' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec4cf9d63a6/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec4cf9d63a6/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec4cf9d63a6/1/web/1' id='toc-item-SEC4CF9D63A6' data-tocid='SEC4CF9D63A6' > <span class='name'>Paired recoveryOS restrictions</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Startup Disk security policy control' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec7d92dc49f/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec7d92dc49f/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec7d92dc49f/1/web/1' id='toc-item-SEC7D92DC49F' data-tocid='SEC7D92DC49F' > <span class='name'>Startup Disk security policy control</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='LocalPolicy signing-key creation and management' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec1f90fbad1/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec1f90fbad1/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec1f90fbad1/1/web/1' id='toc-item-SEC1F90FBAD1' data-tocid='SEC1F90FBAD1' > <span class='name'>LocalPolicy signing-key creation and management</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Contents of a LocalPolicy file for a Mac with Apple silicon' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc745a0845/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc745a0845/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc745a0845/1/web/1' id='toc-item-SECC745A0845' data-tocid='SECC745A0845' > <span class='name'>Contents of a LocalPolicy file for a Mac with Apple silicon</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Intel-based Mac computers' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC3650A1266' onClick='' > <span class='name'>Intel-based Mac computers</span> </button> <ul id='node-children-SEC3650A1266' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Boot process' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec5d0fab7c6/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec5d0fab7c6/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec5d0fab7c6/1/web/1' id='toc-item-SEC5D0FAB7C6' data-tocid='SEC5D0FAB7C6' > <span class='name'>Boot process</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Boot modes' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec7703b1423/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec7703b1423/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec7703b1423/1/web/1' id='toc-item-SEC7703B1423' data-tocid='SEC7703B1423' > <span class='name'>Boot modes</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Startup Security Utility' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc7b34e5b5/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc7b34e5b5/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc7b34e5b5/1/web/1' id='toc-item-SECC7B34E5B5' data-tocid='SECC7B34E5B5' > <span class='name'>Startup Security Utility</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Firmware password protection' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec28382c9ca/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec28382c9ca/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec28382c9ca/1/web/1' id='toc-item-SEC28382C9CA' data-tocid='SEC28382C9CA' > <span class='name'>Firmware password protection</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='recoveryOS and diagnostics environments' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec2512a0c09/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec2512a0c09/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec2512a0c09/1/web/1' id='toc-item-SEC2512A0C09' data-tocid='SEC2512A0C09' > <span class='name'>recoveryOS and diagnostics environments</span> </a> </li> </ul> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Signed system volume security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secd698747c9/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secd698747c9/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secd698747c9/1/web/1' id='toc-item-SECD698747C9' data-tocid='SECD698747C9' > <span class='name'>Signed system volume security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure software updates' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf683e0b36/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf683e0b36/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secf683e0b36/1/web/1' id='toc-item-SECF683E0B36' data-tocid='SECF683E0B36' > <span class='name'>Secure software updates</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Operating system integrity' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec8b776536b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec8b776536b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec8b776536b/1/web/1' id='toc-item-SEC8B776536B' data-tocid='SEC8B776536B' > <span class='name'>Operating system integrity</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Activating data connections securely' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec5044aad1b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec5044aad1b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec5044aad1b/1/web/1' id='toc-item-SEC5044AAD1B' data-tocid='SEC5044AAD1B' > <span class='name'>Activating data connections securely</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Verifying accessories' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec70a4f377d/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec70a4f377d/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec70a4f377d/1/web/1' id='toc-item-SEC70A4F377D' data-tocid='SEC70A4F377D' > <span class='name'>Verifying accessories</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='BlastDoor for Messages and IDS' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secd3c881cee/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secd3c881cee/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secd3c881cee/1/web/1' id='toc-item-SECD3C881CEE' data-tocid='SECD3C881CEE' > <span class='name'>BlastDoor for Messages and IDS</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Lockdown Mode security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec2437264f0/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec2437264f0/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec2437264f0/1/web/1' id='toc-item-SEC2437264F0' data-tocid='SEC2437264F0' > <span class='name'>Lockdown Mode security</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Additional macOS system security capabilities' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SECDA4F2237A' onClick='' > <span class='name'>Additional macOS system security capabilities</span> </button> <ul id='node-children-SECDA4F2237A' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Additional macOS system security capabilities' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec2fd2cc63d/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec2fd2cc63d/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec2fd2cc63d/1/web/1' id='toc-item-SEC2FD2CC63D' data-tocid='SEC2FD2CC63D' > <span class='name'>Additional macOS system security capabilities</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='System Integrity Protection' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb7ea06b49/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb7ea06b49/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb7ea06b49/1/web/1' id='toc-item-SECB7EA06B49' data-tocid='SECB7EA06B49' > <span class='name'>System Integrity Protection</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Trust caches' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec7d38fbf97/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec7d38fbf97/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec7d38fbf97/1/web/1' id='toc-item-SEC7D38FBF97' data-tocid='SEC7D38FBF97' > <span class='name'>Trust caches</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Peripheral processor security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seca500d4f2b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seca500d4f2b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seca500d4f2b/1/web/1' id='toc-item-SECA500D4F2B' data-tocid='SECA500D4F2B' > <span class='name'>Peripheral processor security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Rosetta 2 on a Mac with Apple silicon' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secebb113be1/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secebb113be1/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secebb113be1/1/web/1' id='toc-item-SECEBB113BE1' data-tocid='SECEBB113BE1' > <span class='name'>Rosetta 2 on a Mac with Apple silicon</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Direct memory access protections' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seca4960c2b5/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seca4960c2b5/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seca4960c2b5/1/web/1' id='toc-item-SECA4960C2B5' data-tocid='SECA4960C2B5' > <span class='name'>Direct memory access protections</span> </a> </li> <li class="selected"> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Securely extending the kernel' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec8e454101b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec8e454101b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec8e454101b/1/web/1' id='toc-item-SEC8E454101B' data-tocid='SEC8E454101B' aria-current='page' > <span class='name'>Securely extending the kernel</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Option ROM security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc80b0cd0c/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc80b0cd0c/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc80b0cd0c/1/web/1' id='toc-item-SECC80B0CD0C' data-tocid='SECC80B0CD0C' > <span class='name'>Option ROM security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='UEFI firmware security in an Intel-based Mac' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seced055bcf6/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seced055bcf6/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seced055bcf6/1/web/1' id='toc-item-SECED055BCF6' data-tocid='SECED055BCF6' > <span class='name'>UEFI firmware security in an Intel-based Mac</span> </a> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='System security for watchOS' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc7d85209d/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc7d85209d/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc7d85209d/1/web/1' id='toc-item-SECC7D85209D' data-tocid='SECC7D85209D' > <span class='name'>System security for watchOS</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Random number generation' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seca0c73a75b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seca0c73a75b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seca0c73a75b/1/web/1' id='toc-item-SECA0C73A75B' data-tocid='SECA0C73A75B' > <span class='name'>Random number generation</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Apple Security Research Device' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seca7ff718d2/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seca7ff718d2/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seca7ff718d2/1/web/1' id='toc-item-SECA7FF718D2' data-tocid='SECA7FF718D2' > <span class='name'>Apple Security Research Device</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Encryption and Data Protection' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC41DE7FD06' onClick='' > <span class='name'>Encryption and Data Protection</span> </button> <ul id='node-children-SEC41DE7FD06' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Encryption and Data Protection overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sece3bee0835/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sece3bee0835/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sece3bee0835/1/web/1' id='toc-item-SECE3BEE0835' data-tocid='SECE3BEE0835' > <span class='name'>Encryption and Data Protection overview</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Passcodes and passwords' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec20230a10d/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec20230a10d/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec20230a10d/1/web/1' id='toc-item-SEC20230A10D' data-tocid='SEC20230A10D' > <span class='name'>Passcodes and passwords</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Data Protection' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC9697848CB' onClick='' > <span class='name'>Data Protection</span> </button> <ul id='node-children-SEC9697848CB' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Data Protection overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf6276da8a/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf6276da8a/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secf6276da8a/1/web/1' id='toc-item-SECF6276DA8A' data-tocid='SECF6276DA8A' > <span class='name'>Data Protection overview</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Data Protection' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sece8608431d/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sece8608431d/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sece8608431d/1/web/1' id='toc-item-SECE8608431D' data-tocid='SECE8608431D' > <span class='name'>Data Protection</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Data Protection classes' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb010e978a/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb010e978a/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb010e978a/1/web/1' id='toc-item-SECB010E978A' data-tocid='SECB010E978A' > <span class='name'>Data Protection classes</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Keybags for Data Protection' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec6483d5760/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec6483d5760/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec6483d5760/1/web/1' id='toc-item-SEC6483D5760' data-tocid='SEC6483D5760' > <span class='name'>Keybags for Data Protection</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Protecting keys in alternate boot modes' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sece49ec4098/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sece49ec4098/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sece49ec4098/1/web/1' id='toc-item-SECE49EC4098' data-tocid='SECE49EC4098' > <span class='name'>Protecting keys in alternate boot modes</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Protecting user data in the face of attack' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf5549a4f5/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf5549a4f5/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secf5549a4f5/1/web/1' id='toc-item-SECF5549A4F5' data-tocid='SECF5549A4F5' > <span class='name'>Protecting user data in the face of attack</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Sealed Key Protection (SKP)' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secdc7c6c88e/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secdc7c6c88e/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secdc7c6c88e/1/web/1' id='toc-item-SECDC7C6C88E' data-tocid='SECDC7C6C88E' > <span class='name'>Sealed Key Protection (SKP)</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Role of Apple File System' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seca6147599e/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seca6147599e/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seca6147599e/1/web/1' id='toc-item-SECA6147599E' data-tocid='SECA6147599E' > <span class='name'>Role of Apple File System</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Keychain data protection' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb0694df1a/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb0694df1a/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb0694df1a/1/web/1' id='toc-item-SECB0694DF1A' data-tocid='SECB0694DF1A' > <span class='name'>Keychain data protection</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='FileVault' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC0DA02A25C' onClick='' > <span class='name'>FileVault</span> </button> <ul id='node-children-SEC0DA02A25C' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Volume encryption with FileVault' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec4c6dc1b6e/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec4c6dc1b6e/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec4c6dc1b6e/1/web/1' id='toc-item-SEC4C6DC1B6E' data-tocid='SEC4C6DC1B6E' > <span class='name'>Volume encryption with FileVault</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Managing FileVault' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec8447f5049/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec8447f5049/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec8447f5049/1/web/1' id='toc-item-SEC8447F5049' data-tocid='SEC8447F5049' > <span class='name'>Managing FileVault</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='How Apple protects users’ personal data' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC547F20257' onClick='' > <span class='name'>How Apple protects users’ personal data</span> </button> <ul id='node-children-SEC547F20257' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Protecting app access to user data' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc01781f46/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc01781f46/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc01781f46/1/web/1' id='toc-item-SECC01781F46' data-tocid='SECC01781F46' > <span class='name'>Protecting app access to user data</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Protecting access to user’s health data' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec88be9900f/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec88be9900f/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec88be9900f/1/web/1' id='toc-item-SEC88BE9900F' data-tocid='SEC88BE9900F' > <span class='name'>Protecting access to user’s health data</span> </a> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Digital signing and encryption' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secd0da50a09/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secd0da50a09/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secd0da50a09/1/web/1' id='toc-item-SECD0DA50A09' data-tocid='SECD0DA50A09' > <span class='name'>Digital signing and encryption</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App security' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC20E44D910' onClick='' > <span class='name'>App security</span> </button> <ul id='node-children-SEC20E44D910' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec35dd877d0/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec35dd877d0/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec35dd877d0/1/web/1' id='toc-item-SEC35DD877D0' data-tocid='SEC35DD877D0' > <span class='name'>App security overview</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App security in iOS and iPadOS' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC42308DFA3' onClick='' > <span class='name'>App security in iOS and iPadOS</span> </button> <ul id='node-children-SEC42308DFA3' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Intro to app security for iOS and iPadOS' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf49cad4db/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf49cad4db/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secf49cad4db/1/web/1' id='toc-item-SECF49CAD4DB' data-tocid='SECF49CAD4DB' > <span class='name'>Intro to app security for iOS and iPadOS</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='About App Store security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb8f887a15/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb8f887a15/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb8f887a15/1/web/1' id='toc-item-SECB8F887A15' data-tocid='SECB8F887A15' > <span class='name'>About App Store security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App code signing process' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec7c917bf14/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec7c917bf14/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec7c917bf14/1/web/1' id='toc-item-SEC7C917BF14' data-tocid='SEC7C917BF14' > <span class='name'>App code signing process</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Security of runtime process' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec15bfe098e/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec15bfe098e/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec15bfe098e/1/web/1' id='toc-item-SEC15BFE098E' data-tocid='SEC15BFE098E' > <span class='name'>Security of runtime process</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Supporting extensions' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secabd3504cd/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secabd3504cd/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secabd3504cd/1/web/1' id='toc-item-SECABD3504CD' data-tocid='SECABD3504CD' > <span class='name'>Supporting extensions</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App protection and app groups' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec1a976c067/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec1a976c067/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec1a976c067/1/web/1' id='toc-item-SEC1A976C067' data-tocid='SEC1A976C067' > <span class='name'>App protection and app groups</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App security in macOS' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC8144D57B8' onClick='' > <span class='name'>App security in macOS</span> </button> <ul id='node-children-SEC8144D57B8' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Intro to app security for macOS' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf826eff27/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf826eff27/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secf826eff27/1/web/1' id='toc-item-SECF826EFF27' data-tocid='SECF826EFF27' > <span class='name'>Intro to app security for macOS</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App code signing process' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec3ad8e6e53/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec3ad8e6e53/1/web/1' data-ss-analytics-event="acs.link_click" 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class='name'>Controlling app access to files</span> </a> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure features in the Notes app' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec1782bcab1/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec1782bcab1/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec1782bcab1/1/web/1' id='toc-item-SEC1782BCAB1' data-tocid='SEC1782BCAB1' > <span class='name'>Secure features in the Notes app</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure features in the Shortcuts app' class='toc-item' 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data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Advanced Data Protection for iCloud' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec973254c5f/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec973254c5f/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec973254c5f/1/web/1' id='toc-item-SEC973254C5F' data-tocid='SEC973254C5F' > <span class='name'>Advanced Data Protection for iCloud</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Security of iCloud Backup' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec2c21e7f49/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec2c21e7f49/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec2c21e7f49/1/web/1' id='toc-item-SEC2C21E7F49' data-tocid='SEC2C21E7F49' > <span class='name'>Security of iCloud Backup</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='iCloud Private Relay security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secad8ce3233/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secad8ce3233/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secad8ce3233/1/web/1' id='toc-item-SECAD8CE3233' data-tocid='SECAD8CE3233' > <span class='name'>iCloud Private Relay security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Account recovery contact security' 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class='name'>Legacy Contact security</span> </a> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Passcode and password management' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC7CA6C2803' onClick='' > <span class='name'>Passcode and password management</span> </button> <ul id='node-children-SEC7CA6C2803' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Passcode security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec3d3610acc/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec3d3610acc/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec3d3610acc/1/web/1' id='toc-item-SEC3D3610ACC' data-tocid='SEC3D3610ACC' > <span class='name'>Passcode security overview</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Sign in with Apple security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secda721bdd7/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secda721bdd7/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secda721bdd7/1/web/1' id='toc-item-SECDA721BDD7' data-tocid='SECDA721BDD7' > <span class='name'>Sign in with Apple security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Automatic strong passwords' 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class='name'>Password AutoFill security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='App access to saved passwords' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec8762eb992/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec8762eb992/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec8762eb992/1/web/1' id='toc-item-SEC8762EB992' data-tocid='SEC8762EB992' > <span class='name'>App access to saved passwords</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Password security recommendations' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec7f0432063/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec7f0432063/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec7f0432063/1/web/1' id='toc-item-SEC7F0432063' data-tocid='SEC7F0432063' > <span class='name'>Password security recommendations</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Password Monitoring' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec78e79fc3b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec78e79fc3b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec78e79fc3b/1/web/1' id='toc-item-SEC78E79FC3B' data-tocid='SEC78E79FC3B' > <span class='name'>Password Monitoring</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Sending passwords' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec8839a8de2/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec8839a8de2/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec8839a8de2/1/web/1' id='toc-item-SEC8839A8DE2' data-tocid='SEC8839A8DE2' > <span class='name'>Sending passwords</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Credential provider extensions' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec6319ac7b9/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec6319ac7b9/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec6319ac7b9/1/web/1' id='toc-item-SEC6319AC7B9' data-tocid='SEC6319AC7B9' > <span class='name'>Credential provider extensions</span> </a> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='iCloud Keychain' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC41E2B2A0F' onClick='' > <span class='name'>iCloud Keychain</span> </button> <ul id='node-children-SEC41E2B2A0F' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='iCloud Keychain security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec1c89c6f3b/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec1c89c6f3b/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec1c89c6f3b/1/web/1' id='toc-item-SEC1C89C6F3B' data-tocid='SEC1C89C6F3B' > <span class='name'>iCloud Keychain security overview</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure keychain syncing' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec0a319b35f/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec0a319b35f/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec0a319b35f/1/web/1' id='toc-item-SEC0A319B35F' data-tocid='SEC0A319B35F' > <span class='name'>Secure keychain syncing</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure iCloud Keychain recovery' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secdeb202947/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secdeb202947/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secdeb202947/1/web/1' id='toc-item-SECDEB202947' data-tocid='SECDEB202947' > <span class='name'>Secure iCloud Keychain recovery</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Escrow security for iCloud Keychain ' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec3e341e75d/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec3e341e75d/1/web/1' 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data-tocid='SECC1F57E189' > <span class='name'>Payment authorization with Apple Pay</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Paying with cards using Apple Pay' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secfbd5c0e54/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secfbd5c0e54/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secfbd5c0e54/1/web/1' id='toc-item-SECFBD5C0E54' data-tocid='SECFBD5C0E54' > <span class='name'>Paying with cards using Apple Pay</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Contactless passes in Apple Pay' class='toc-item' 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class='name'>Rendering cards unusable with Apple Pay</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Apple Card security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb29b74e98/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb29b74e98/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb29b74e98/1/web/1' id='toc-item-SECB29B74E98' data-tocid='SECB29B74E98' > <span class='name'>Apple Card security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Apple Cash security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec133775d09/1/web/1' 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data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Using Apple Wallet' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC9CA91D9C7' onClick='' > <span class='name'>Using Apple Wallet</span> </button> <ul id='node-children-SEC9CA91D9C7' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Access using Apple Wallet' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec75f6d5040/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec75f6d5040/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec75f6d5040/1/web/1' id='toc-item-SEC75F6D5040' data-tocid='SEC75F6D5040' > <span class='name'>Access using Apple Wallet</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Access key types' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec30bdef041/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec30bdef041/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec30bdef041/1/web/1' id='toc-item-SEC30BDEF041' data-tocid='SEC30BDEF041' > <span class='name'>Access key types</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Car key security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secf64471c16/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secf64471c16/1/web/1' 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data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='IDs in Apple Wallet' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC9EBC32F51' onClick='' > <span class='name'>IDs in Apple Wallet</span> </button> <ul id='node-children-SEC9EBC32F51' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='IDs in Apple Wallet' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc50cff810/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc50cff810/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc50cff810/1/web/1' id='toc-item-SECC50CFF810' data-tocid='SECC50CFF810' > <span class='name'>IDs in Apple Wallet</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Security of IDs in Apple Wallet' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secb569bf393/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secb569bf393/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secb569bf393/1/web/1' id='toc-item-SECB569BF393' data-tocid='SECB569BF393' > <span class='name'>Security of IDs in Apple Wallet</span> </a> </li> </ul> </li> </ul> </li> <li> <button class='section' data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='iMessage' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC01FBDFE25' onClick='' > <span class='name'>iMessage</span> </button> <ul id='node-children-SEC01FBDFE25' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='iMessage security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secd9764312f/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secd9764312f/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secd9764312f/1/web/1' id='toc-item-SECD9764312F' data-tocid='SECD9764312F' > <span class='name'>iMessage security overview</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='How iMessage sends and receives messages' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec70e68c949/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec70e68c949/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec70e68c949/1/web/1' id='toc-item-SEC70E68C949' data-tocid='SEC70E68C949' > <span class='name'>How iMessage sends and receives messages</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure iMessage name and photo sharing' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secea5f2e977/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secea5f2e977/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secea5f2e977/1/web/1' id='toc-item-SECEA5F2E977' data-tocid='SECEA5F2E977' > <span class='name'>Secure iMessage name and photo sharing</span> </a> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Secure Apple Messages for Business' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec1c603aab4/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec1c603aab4/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec1c603aab4/1/web/1' id='toc-item-SEC1C603AAB4' data-tocid='SEC1C603AAB4' > <span class='name'>Secure Apple Messages for Business</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='FaceTime security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seca331c55cd/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seca331c55cd/1/web/1' 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Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='HomeKit security' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC1F0A0D15F' onClick='' > <span class='name'>HomeKit security</span> </button> <ul id='node-children-SEC1F0A0D15F' class='non-leaf-node-children'> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Communication security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec3a881ccb1/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec3a881ccb1/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec3a881ccb1/1/web/1' id='toc-item-SEC3A881CCB1' data-tocid='SEC3A881CCB1' > <span class='name'>Communication security</span> </a> </li> <li> <a 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data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seccab60e931/1/web/1' id='toc-item-SECCAB60E931' data-tocid='SECCAB60E931' > <span class='name'>Securing routers with HomeKit</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Camera security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec525461d19/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec525461d19/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec525461d19/1/web/1' id='toc-item-SEC525461D19' data-tocid='SEC525461D19' > <span class='name'>Camera security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='Security with Apple TV' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec5d283419e/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec5d283419e/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec5d283419e/1/web/1' id='toc-item-SEC5D283419E' data-tocid='SEC5D283419E' > <span class='name'>Security with Apple TV</span> </a> </li> </ul> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='SiriKit security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sece2da44807/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sece2da44807/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sece2da44807/1/web/1' id='toc-item-SECE2DA44807' data-tocid='SECE2DA44807' > <span class='name'>SiriKit security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='WidgetKit security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secbb0a1f9b4/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secbb0a1f9b4/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secbb0a1f9b4/1/web/1' id='toc-item-SECBB0A1F9B4' data-tocid='SECBB0A1F9B4' > <span class='name'>WidgetKit security</span> </a> </li> <li> <a data-ss-analytics-link-component_name='Apple Platform Security' data-ss-analytics-link-component_type='toc list' data-ss-analytics-link-text='DriverKit security' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secd0a47c14c/1/web/1' 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width="30" originalImageName="GlobalArt/AppIconDefault_Security.png"></figure><h1>Securely extending the kernel in macOS</h1><p>Starting with <span class="NoBreak">macOS 11</span>, if third-party kernel extensions (kexts) are enabled, they can’t be loaded into the kernel on demand. Instead, they’re merged into an <em>Auxiliary Kernel Collection (AuxKC)</em>, which is loaded during the boot process. For a Mac with Apple silicon, the measurement of the AuxKC is signed into the LocalPolicy (for previous hardware, the AuxKC resided on the data volume). Rebuilding the AuxKC requires the user’s approval and restarting of the macOS to load the changes into the kernel, and it requires that the secure boot be configured to Reduced Security.</p><div class="Alert"><p class="Important"><strong>Important: </strong>Kexts are no longer recommended for macOS. Kexts risk the integrity and reliability of the operating system, and Apple recommends users select solutions that don’t require extending the kernel.</p></div><div id="sec8697bc589" class="Subhead"><h2 class="Name">Kernel extensions in a Mac with Apple silicon</h2><p>Kexts must be explicitly enabled for a Mac with Apple silicon by holding the power button at startup to enter into One True Recovery (1TR) mode, then downgrading to Reduced Security and checking the box to enable kernel extensions. This action also requires entering an administrator password to authorize the downgrade. The combination of the 1TR and password requirement makes it difficult for software-only attackers starting from within macOS to inject kexts into macOS, which they can then exploit to gain kernel privileges.</p><p>After a user authorizes kexts to load, the above User-Approved Kernel Extension Loading flow is used to authorize the installation of kexts. The authorization used for the above flow is also used to capture an SHA384 hash of the user-authorized kext list (UAKL) in the LocalPolicy. The kernel management daemon (<code>kmd</code>) is then responsible for validating only those kexts found in the UAKL for inclusion into the AuxKC.</p><ul><li><p>If System Integrity Protection (SIP) is enabled, the signature of each kext is verified before being included in the AuxKC.</p></li><li><p>If SIP is disabled, the kext signature isn’t enforced.</p></li></ul><p>This approach allows Permissive Security flows for developers or users who aren’t part of the Apple Developer Program to test kexts before they are signed.</p><p>After the AuxKC is created, its measurement is sent to the Secure Enclave to be signed and included in an Image4 data structure that can be evaluated by iBoot at startup. As part of the AuxKC construction, a kext receipt is also generated. This receipt contains the list of kexts that were actually included in the AuxKC, because the set could be a subset of the UAKL if banned kexts were encountered. An SHA384 hash of the AuxKC Image4 data structure and the kext receipt are included in the LocalPolicy. The AuxKC Image4 hash is used for extra verification by iBoot at startup to help ensure that it isn’t possible to start up an older Secure Enclave–signed AuxKC Image4 file with a newer LocalPolicy. The kext receipt is used by subsystems such as <span class="NoBreak">Apple Pay</span> to determine whether there are any kexts currently loaded that could interfere with the trustworthiness of macOS. If there are, then <span class="NoBreak">Apple Pay</span> capabilities may be disabled.</p></div><div id="sec98949d601" class="Subhead"><h2 class="Name">System extensions</h2><p><span class="NoBreak">macOS 10.15</span> allows developers to extend the capabilities of macOS by installing and managing system extensions that run in user space rather than at the kernel level. By running in user space, system extensions increase the stability and security of macOS. Even though kexts inherently have full access to the entire operating system, extensions running in user space are granted only the privileges necessary to perform their specified function.</p><p>Developers can use frameworks, including DriverKit, EndpointSecurity, and NetworkExtension, to write USB and human interface drivers, endpoint security tools (like data loss prevention or other endpoint agents), and VPN and network tools, all without needing to write kexts. Third-party security agents should be used only if they take advantage of these APIs or have a robust road map to transition to them and away from kernel extensions.</p></div><div id="seca2ceb84df" class="Subhead"><h2 class="Name">User-Approved Kernel Extension Loading</h2><p>To improve security, user consent is required to load kernel extensions installed with or after installing <span class="NoBreak">macOS 10.13</span>. This process is known as <em>User-Approved Kernel Extension Loading</em>. Administrator authorization is required to approve a kernel extension. Kernel extensions don’t require authorization if they:</p><ul><li><p>Were installed on a Mac when running <span class="NoBreak">macOS 10.12</span> or earlier</p></li><li><p>Are replacing previously approved extensions</p></li><li><p>Are allowed to load without user consent by using the <code>spctl</code> command-line tool available when a Mac was booted from recoveryOS</p></li><li><p>Are allowed to load using <a href="https://support.apple.com/en-gu/guide/security/aside/sec1a32cff88/1/web/1" class="xRef Aside">mobile device management (MDM)</a> configuration</p><p>Starting with <span class="NoBreak">macOS 10.13.2</span>, users can use MDM to specify a list of kernel extensions that load without user consent. This option requires a Mac running <span class="NoBreak">macOS 10.13.2</span> that’s enrolled in MDM—through <a href="https://support.apple.com/en-gu/guide/security/aside/sec76b4b5232/1/web/1" class="xRef Aside">Apple School Manager</a>, <a href="https://support.apple.com/en-gu/guide/security/aside/sec940ec17e5/1/web/1" class="xRef Aside">Apple Business Manager</a>, or MDM enrollment done by the user.</p></li></ul></div><Footer>Published Date: February 18, 2021</Footer><div class="LinkUniversal"><strong>See also</strong><a href="https://support.apple.com/en-gu/guide/security/contents-a-localpolicy-file-mac-apple-silicon-secc745a0845/1/web/1#sec6512859ac" " class="xRef Subhead">Auxiliary Kernel Collection (AuxKC) Policy Hash (auxp)</a><a href="https://support.apple.com/en-gu/guide/security/contents-a-localpolicy-file-mac-apple-silicon-secc745a0845/1/web/1#sec92fa6a900" " class="xRef Subhead">Auxiliary Kernel Collection (AuxKC) Image4 Manifest Hash (auxi)</a><a href="https://support.apple.com/en-gu/guide/security/contents-a-localpolicy-file-mac-apple-silicon-secc745a0845/1/web/1#sec4310bdafa" " class="xRef Subhead">Auxiliary Kernel Collection (AuxKC) Receipt Hash (auxr)</a><a href="https://support.apple.com/en-gu/guide/security/system-integrity-protection-secb7ea06b49/1/web/1" class="xRef AppleTopic">System Integrity Protection</a></div><div class="LinkDownload single"><p><a href="https://help.apple.com/pdf/security/en_US/apple-platform-security-guide.pdf" id="sec1d75ee4db" class="URL">Download this guide as a PDF</a></p></div></body></div> </div> </div> </div> <div id='aside-hidden-content'> <div class="main"> </div> </div> <div id='helpful-rating-wrapper'> <div id='helpful' class='ratings okapi-enabled'> <div id='question-state' class='show'> <fieldset> <legend> <span id="okapi-a">Helpful?</span> </legend> <div class='helpful-btn-grp'> <button class='button button-secondary' id='yes-button' data-ss-analytics-link-component_name='helpful' data-ss-analytics-link-component_type='helpful' data-ss-analytics-link-text='yes' data-ss-analytics-event=acs.link_click title='Solved my problem'> Yes </button> <button class='button button-secondary' id='no-button' data-ss-analytics-link-component_name='helpful' data-ss-analytics-link-component_type='helpful' data-ss-analytics-link-text='no' data-ss-analytics-event=acs.link_click title='Not helpful'> No </button> </div> </fieldset> </div> <div id='feedback-state' class="form-element form-textbox-labelbelow hide"> <form autocomplete="off"> <input type='hidden' id='form-counter-error-message' value="Maximum character limit is 250." /> <label id='feedback-label' data-no-label="Thanks for letting us know." data-yes-label="We’re glad this article helped." ></label> <div class='form-element form-textbox-labelbelow' id='feedback'> <div class="textarea-wrapper"> <span class='form-label' id='optional_label' aria-hidden='true'></span> <div> <textarea class='form-textbox form-textbox-textarea form-counter-textarea form-textbox-entered' data-no-placeholder="How can we make this article more helpful? 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