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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' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec067eb0c9e/1/web/1' 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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> <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' > <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 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='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' aria-current='page' > <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' 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href='https://support.apple.com/en-gu/guide/security/secebf027fb8/1/web/1' id='toc-item-SECEBF027FB8' data-tocid='SECEBF027FB8' > <span 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' 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href='https://support.apple.com/en-gu/guide/security/sec7aefe77c3/1/web/1' id='toc-item-SEC7AEFE77C3' data-tocid='SEC7AEFE77C3' > <span 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' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec3e341e75d/1/web/1' id='toc-item-SEC3E341E75D' data-tocid='SEC3E341E75D' > <span class='name'>Escrow security for iCloud Keychain </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='Apple Pay' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC6F62017B5' onClick='' > <span class='name'>Apple Pay</span> </button> <ul id='node-children-SEC6F62017B5' 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='Apple Pay security overview' class='toc-item' 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Pay component 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='How Apple Pay keeps users’ purchases protected' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/seccb53a35f0/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/seccb53a35f0/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/seccb53a35f0/1/web/1' id='toc-item-SECCB53A35F0' data-tocid='SECCB53A35F0' > <span class='name'>How Apple Pay keeps users’ purchases protected</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='Credit, debit, and prepaid cards' data-ss-analytics-event="acs.link_click" aria-expanded='false' aria-controls='node-children-SEC28096505F' onClick='' > <span class='name'>Credit, debit, and prepaid cards</span> </button> <ul id='node-children-SEC28096505F' 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='Card provisioning security overview' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/sec0f005981a/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/sec0f005981a/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/sec0f005981a/1/web/1' id='toc-item-SEC0F005981A' data-tocid='SEC0F005981A' > <span class='name'>Card provisioning 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='Adding credit or debit cards to Apple Pay' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secdc2567239/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secdc2567239/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secdc2567239/1/web/1' id='toc-item-SECDC2567239' data-tocid='SECDC2567239' > <span class='name'>Adding credit or debit cards to Apple Pay</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='Payment authorization with Apple Pay' class='toc-item' data-ss-analytics-link-url='https://support.apple.com/en-gu/guide/security/secc1f57e189/1/web/1' data-ajax-endpoint='https://support.apple.com/en-gu/guide/security/secc1f57e189/1/web/1' data-ss-analytics-event="acs.link_click" href='https://support.apple.com/en-gu/guide/security/secc1f57e189/1/web/1' id='toc-item-SECC1F57E189' 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>UEFI firmware security in an Intel-based Mac</h1><p>An Intel-based Mac with an Apple T2 Security Chip offers security using UEFI (Intel) firmware.</p><div id="sec77175800a" class="Subhead"><h2 class="Name">Overview</h2><p>Since 2006, Mac computers with an Intel-based CPU use an Intel firmware based on the Extensible Firmware Interface (EFI) Development Kit (EDK) version 1 or version 2. EDK2-based code conforms to the Unified Extensible Firmware Interface (UEFI) specification. This section refers to the Intel firmware as the <em>UEFI firmware</em>. The UEFI firmware was the first code to execute on the Intel chip.</p><p>For an Intel-based Mac without the Apple T2 Security Chip, the root of trust for the UEFI firmware is the chip where the firmware is stored. UEFI firmware updates are digitally signed by Apple and verified by the firmware before updating the storage. To help prevent rollback attacks, updates must always have a version newer than the existing one. However, an attacker with physical access to the Mac could potentially use hardware to attach to the firmware storage chip and update the chip to contain malicious content. Likewise, if vulnerabilities are found in the early boot process of the UEFI firmware (before it write-restricts the storage chip), this could also lead to persistent infection of the UEFI firmware. This is a hardware architectural limitation common in most Intel-based PCs and present in all Intel-based Mac computers without the T2 chip.</p><p>To help prevent physical attacks that subvert UEFI firmware, Mac computers were rearchitected to root the trust in the UEFI firmware in the T2 chip. On these Mac computers, the root of trust for the UEFI firmware is specifically the T2 firmware, as described in <a href="https://support.apple.com/en-gu/guide/security/boot-process-sec5d0fab7c6/1/web/1" class="xRef AppleTopic">Boot process for an Intel-based Mac</a>.</p></div><div id="secd3f92c5ac" class="Subhead"><h2 class="Name">Intel Management Engine (ME) subcomponent</h2><p>One subcomponent stored within the UEFI firmware is the <em>Intel Management Engine (ME)</em> firmware. The ME—a separate processor and subsystem within Intel chips—is used primarily for audio and video copyright protection on a Mac that has only Intel-based graphics. To reduce this subcomponent’s attack surface, an Intel-based Mac runs a custom ME firmware from which most components have been removed. Because the resulting Mac ME firmware is smaller than the default minimal build that Intel makes available, many components that have been the subject of public attacks by security researchers in the past are no longer present.</p></div><div id="sec781f44a02" class="Subhead"><h2 class="Name">System Management Mode (SMM)</h2><p>Intel processors have a special execution mode that’s distinct from normal operation. Called <em>System Management Mode (SMM)</em>, it was originally introduced to handle time-sensitive operations such as power management. However, to perform such actions, Mac computers have historically used a discrete microcontroller called the <em>System Management Controller (SMC)</em>. No longer a separate microcontroller, the SMC has been integrated into the T2 chip.</p></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/recoveryos-and-diagnostics-environments-sec2512a0c09/1/web/1" class="xRef AppleTopic">recoveryOS and diagnostics environments for an Intel-based Mac</a><a href="https://support.apple.com/en-gu/guide/security/startup-security-utility-secc7b34e5b5/1/web/1" class="xRef AppleTopic">Startup Security Utility on a Mac with an Apple T2 Security Chip</a><a href="https://support.apple.com/en-gu/guide/security/option-rom-security-secc80b0cd0c/1/web/1" class="xRef AppleTopic">Option ROM security in macOS</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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