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Help, I think I've been hacked  |  Articles  |  web.dev

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button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <a href="/" class="devsite-site-logo-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Site logo" track-type="globalNav" track-name="webDev" track-metadata-position="nav" track-metadata-eventDetail="nav"> <picture> <source srcset="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup-dark-theme.svg" media="(prefers-color-scheme: dark)" class="devsite-dark-theme" alt="web.dev"> <img src="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/web/images/lockup.svg" class="devsite-site-logo" alt="web.dev"> </picture> </a> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/about" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: About" track-name="about" data-category="Site-Wide Custom Events" data-label="Responsive Tab: About" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > About </span> </a> </li> <li class="devsite-nav-item"> <a href="/html" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: HTML" track-name="html" data-category="Site-Wide Custom Events" data-label="Responsive Tab: HTML" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > HTML </span> </a> </li> <li class="devsite-nav-item"> <a href="/css" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: CSS" track-name="css" data-category="Site-Wide Custom Events" data-label="Responsive Tab: CSS" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > CSS </span> </a> </li> <li class="devsite-nav-item"> <a href="/javascript" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: JavaScript" track-name="javascript" data-category="Site-Wide Custom Events" data-label="Responsive Tab: JavaScript" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > JavaScript </span> </a> </li> <li class="devsite-nav-item"> <a href="/blog" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Blog" track-name="blog" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Blog" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Blog </span> </a> </li> <li class="devsite-nav-item"> <a href="/learn" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Learn" track-name="learn" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Learn" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Learn </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Explore" track-name="explore" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Explore" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Explore </span> </a> <ul class="devsite-nav-responsive-tabs"> <li class="devsite-nav-item"> <a href="/explore/learn-core-web-vitals" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Core Web Vitals" track-name="core web vitals" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Core Web Vitals" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Core Web Vitals </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/metrics" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Metrics" track-name="metrics" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Metrics" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Metrics </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/fast" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Fast load times" track-name="fast load times" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Fast load times" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Fast load times </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/ai" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: AI" track-name="ai" data-category="Site-Wide Custom Events" data-label="Responsive Tab: AI" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > AI </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/how-to-optimize-inp" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Optimize Interaction to Next Paint (INP)" track-name="optimize interaction to next paint (inp)" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Optimize Interaction to Next Paint (INP)" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Optimize Interaction to Next Paint (INP) </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/progressive-web-apps" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Progressive Web Apps" track-name="progressive web apps" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Progressive Web Apps" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Progressive Web Apps </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/accessibility" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Accessible to all" track-name="accessible to all" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Accessible to all" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Accessible to all </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/reliable" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Network reliability" track-name="network reliability" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Network reliability" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Network reliability </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/secure" class="devsite-nav-title gc-analytics-event devsite-nav-has-children devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Safe and secure" track-name="safe and secure" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Safe and secure" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip menu="_book"> Safe and secure </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="_book"> </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/discoverable" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Easily discoverable" track-name="easily discoverable" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Easily discoverable" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Easily discoverable </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/payments" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Web Payments" track-name="web payments" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Web Payments" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Web Payments </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/media" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Media" track-name="media" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Media" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Media </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/devices" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Devices" track-name="devices" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Devices" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Devices </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/animations" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Animations" track-name="animations" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Animations" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Animations </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/identity" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Identity" track-name="identity" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Identity" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Identity </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/webassembly" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: WebAssembly" track-name="webassembly" data-category="Site-Wide Custom Events" data-label="Responsive Tab: WebAssembly" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > WebAssembly </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/test-automation" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Test automation" track-name="test automation" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Test automation" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Test automation </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/react" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: React" track-name="react" data-category="Site-Wide Custom Events" data-label="Responsive Tab: React" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > React </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/angular" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Angular" track-name="angular" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Angular" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Angular </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/explore/mini-apps" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Mini apps" track-name="mini apps" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Mini apps" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Mini apps </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/patterns" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Patterns" track-name="patterns" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Patterns" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Patterns </span> </a> </li> <li class="devsite-nav-item"> <a href="/case-studies" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Case studies" track-name="case studies" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Case studies" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Case studies </span> </a> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Understand security basics</span> </div></li> <li class="devsite-nav-item"><a href="/articles/security-not-scary" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/security-not-scary" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/security-not-scary" ><span class="devsite-nav-text" tooltip>Security should not be so scary!</span></a></li> <li class="devsite-nav-item"><a href="/articles/security-attacks" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/security-attacks" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/security-attacks" ><span class="devsite-nav-text" tooltip>What are security attacks?</span></a></li> <li class="devsite-nav-item"><a href="/articles/same-site-same-origin" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/same-site-same-origin" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/same-site-same-origin" ><span class="devsite-nav-text" tooltip>Understanding &#34;same-site&#34; and &#34;same-origin&#34;</span></a></li> <li class="devsite-nav-item"><a href="/articles/security-headers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/security-headers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/security-headers" ><span class="devsite-nav-text" tooltip>Security headers quick reference</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Secure connections with HTTPS</span> </div></li> <li class="devsite-nav-item"><a href="/articles/why-https-matters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/why-https-matters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/why-https-matters" ><span class="devsite-nav-text" tooltip>Why HTTPS matters</span></a></li> <li class="devsite-nav-item"><a href="/articles/enable-https" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/enable-https" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/enable-https" ><span class="devsite-nav-text" tooltip>Enabling HTTPS on your servers</span></a></li> <li class="devsite-nav-item"><a href="/articles/what-is-mixed-content" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/what-is-mixed-content" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/what-is-mixed-content" ><span class="devsite-nav-text" tooltip>What is mixed content?</span></a></li> <li class="devsite-nav-item"><a href="/articles/fixing-mixed-content" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/fixing-mixed-content" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/fixing-mixed-content" ><span class="devsite-nav-text" tooltip>Fixing mixed content</span></a></li> <li class="devsite-nav-item"><a href="/articles/when-to-use-local-https" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/when-to-use-local-https" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/when-to-use-local-https" ><span class="devsite-nav-text" tooltip>When to use HTTPS for local development</span></a></li> <li class="devsite-nav-item"><a href="/articles/how-to-use-local-https" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/how-to-use-local-https" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/how-to-use-local-https" ><span class="devsite-nav-text" tooltip>How to use HTTPS for local development</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Prevent info leaks</span> </div></li> <li class="devsite-nav-item"><a href="/articles/browser-sandbox" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/browser-sandbox" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/browser-sandbox" ><span class="devsite-nav-text" tooltip>Browser sandbox</span></a></li> <li class="devsite-nav-item"><a href="/articles/same-origin-policy" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/same-origin-policy" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/same-origin-policy" ><span class="devsite-nav-text" tooltip>Same-origin policy</span></a></li> <li class="devsite-nav-item"><a href="/articles/cross-origin-resource-sharing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/cross-origin-resource-sharing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/cross-origin-resource-sharing" ><span class="devsite-nav-text" tooltip>Cross-Origin Resource Sharing (CORS)</span></a></li> <li class="devsite-nav-item"><a href="/articles/coop-coep" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/coop-coep" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/coop-coep" ><span class="devsite-nav-text" tooltip>Making your website &#34;cross-origin isolated&#34; using COOP and COEP</span></a></li> <li class="devsite-nav-item"><a href="/articles/why-coop-coep" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/why-coop-coep" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/why-coop-coep" ><span class="devsite-nav-text" tooltip>Why you need &#34;cross-origin isolated&#34; for powerful features</span></a></li> <li class="devsite-nav-item"><a href="/articles/fetch-metadata" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/fetch-metadata" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/fetch-metadata" ><span class="devsite-nav-text" tooltip>Protect your resources from web attacks with Fetch Metadata</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Protect websites from XSS</span> </div></li> <li class="devsite-nav-item"><a href="/articles/trusted-types" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/trusted-types" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/trusted-types" ><span class="devsite-nav-text" tooltip>Prevent DOM-based cross-site scripting vulnerabilities with Trusted Types</span></a></li> <li class="devsite-nav-item"><a href="/articles/strict-csp" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/strict-csp" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/strict-csp" ><span class="devsite-nav-text" tooltip>Mitigate cross-site scripting (XSS) with a strict Content Security Policy (CSP)</span></a></li> <li class="devsite-nav-item"><a href="/articles/securely-hosting-user-data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/securely-hosting-user-data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/securely-hosting-user-data" ><span class="devsite-nav-text" tooltip>Securely hosting user data in modern web applications</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Protect users from tracking</span> </div></li> <li class="devsite-nav-item"><a href="/articles/digging-into-the-privacy-sandbox" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/digging-into-the-privacy-sandbox" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/digging-into-the-privacy-sandbox" ><span class="devsite-nav-text" tooltip>Digging into the Privacy Sandbox</span></a></li> <li class="devsite-nav-item"><a href="/articles/understanding-cookies" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/understanding-cookies" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/understanding-cookies" ><span class="devsite-nav-text" tooltip>Understanding cookies</span></a></li> <li class="devsite-nav-item"><a href="/articles/samesite-cookies-explained" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/samesite-cookies-explained" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/samesite-cookies-explained" ><span class="devsite-nav-text" tooltip>SameSite cookies explained</span></a></li> <li class="devsite-nav-item"><a href="/articles/samesite-cookie-recipes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/samesite-cookie-recipes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/samesite-cookie-recipes" ><span class="devsite-nav-text" tooltip>SameSite cookie recipes</span></a></li> <li class="devsite-nav-item"><a href="/articles/first-party-cookie-recipes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/first-party-cookie-recipes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/first-party-cookie-recipes" ><span class="devsite-nav-text" tooltip>First-party cookie recipes</span></a></li> <li class="devsite-nav-item"><a href="/articles/referrer-best-practices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/referrer-best-practices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/referrer-best-practices" ><span class="devsite-nav-text" tooltip>Referer and Referrer-Policy best practices</span></a></li> <li class="devsite-nav-item"><a href="/articles/trust-tokens" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/trust-tokens" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/trust-tokens" ><span class="devsite-nav-text" tooltip>Getting started with Trust Tokens</span></a></li> <li class="devsite-nav-item"><a href="https://developer.chrome.com/docs/privacy-security/user-agent-client-hints" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://developer.chrome.com/docs/privacy-security/user-agent-client-hints" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://developer.chrome.com/docs/privacy-security/user-agent-client-hints" ><span class="devsite-nav-text" tooltip>User-agent client hints</span></a></li> <li class="devsite-nav-item"><a href="/articles/schemeful-samesite" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/schemeful-samesite" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/schemeful-samesite" ><span class="devsite-nav-text" tooltip>Schemeful Same-Site</span></a></li> <li class="devsite-nav-item"><a href="/articles/floc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/floc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/floc" ><span class="devsite-nav-text" tooltip>What is FLoC?</span></a></li> <li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Monitor security violations and deprecations</span> </div></li> <li class="devsite-nav-item"><a href="https://developer.chrome.com/docs/capabilities/web-apis/reporting-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://developer.chrome.com/docs/capabilities/web-apis/reporting-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://developer.chrome.com/docs/capabilities/web-apis/reporting-api" ><span class="devsite-nav-text" tooltip>Reporting API</span></a></li> <li class="devsite-nav-item"><a href="https://developer.chrome.com/blog/reporting-api-migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: https://developer.chrome.com/blog/reporting-api-migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="https://developer.chrome.com/blog/reporting-api-migration" ><span class="devsite-nav-text" tooltip>Migrate to Reporting API v1</span></a></li> <li class="devsite-nav-item"><a href="/articles/network-error-logging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/network-error-logging" 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I&#39;ve been hacked</span> </div></li> <li class="devsite-nav-item"><a href="/articles/hacked" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/hacked" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/hacked" ><span class="devsite-nav-text" tooltip>Help, I think I&#39;ve been hacked</span></a></li> <li class="devsite-nav-item"><a href="/articles/how-do-i-know-if-my-site-was-hacked" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/how-do-i-know-if-my-site-was-hacked" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/how-do-i-know-if-my-site-was-hacked" ><span class="devsite-nav-text" tooltip>How do I know if my site was hacked?</span></a></li> <li class="devsite-nav-item"><a href="/articles/top-ways-sites-get-hacked-by-spammers" class="devsite-nav-title 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track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/quarantine-your-site" ><span class="devsite-nav-text" tooltip>Quarantine your site</span></a></li> <li class="devsite-nav-item"><a href="/articles/use-search-console" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/use-search-console" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/use-search-console" ><span class="devsite-nav-text" tooltip>Use Search Console</span></a></li> <li class="devsite-nav-item"><a href="/articles/assess-spam-damage" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/assess-spam-damage" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/assess-spam-damage" ><span class="devsite-nav-text" tooltip>Assess spam damage</span></a></li> <li class="devsite-nav-item"><a href="/articles/fix-the-japanese-keyword-hack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/fix-the-japanese-keyword-hack" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/fix-the-japanese-keyword-hack" ><span class="devsite-nav-text" tooltip>Fix the Japanese Keyword hack</span></a></li> <li class="devsite-nav-item"><a href="/articles/fix-the-gibberish-hack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/fix-the-gibberish-hack" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/fix-the-gibberish-hack" ><span class="devsite-nav-text" tooltip>Fix the gibberish hack</span></a></li> <li class="devsite-nav-item"><a href="/articles/fix-the-cloaked-keywords-hack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav 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><span class="devsite-nav-text" tooltip>Identify the vulnerability</span></a></li> <li class="devsite-nav-item"><a href="/articles/clean-and-maintain-your-site" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/clean-and-maintain-your-site" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/clean-and-maintain-your-site" ><span class="devsite-nav-text" tooltip>Clean and maintain your site</span></a></li> <li class="devsite-nav-item"><a href="/articles/request-a-review" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /articles/request-a-review" track-type="bookNav" track-name="click" track-metadata-eventdetail="/articles/request-a-review" ><span class="devsite-nav-text" tooltip>Request a review</span></a></li> <li class="devsite-nav-item"><a href="/articles/glossary-for-hacked-sites" class="devsite-nav-title 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</devsite-thumb-rating> </div> <h1 class="devsite-page-title" tabindex="-1"> Help, I think I&#39;ve been hacked </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <p>Every day, cybercriminals compromise thousands of websites. Hacks are often invisible to users, yet remain harmful to anyone viewing the page, including the site owner. For example, a hacker may have infected your site with harmful code, which in turn can record keystrokes on visitors&#39; computers, stealing login credentials for online banking or financial transactions. If you&#39;re not sure whether your site was hacked, start by reading <a href="/articles/how-do-i-know-if-my-site-was-hacked">how do I know if my site was hacked</a>?</p> <figure> <img src="/static/articles/hacked/image/different-errors-might-i-735533d78f615.gif" alt="Different errors that might indicate a hacked site." width="800" height="450"> <figcaption class="wd-caption">If you're a site owner and you see one of these, you might have been hacked.</figcaption> </figure> <h2 id="learn_more_about_hacking" data-text="Learn more about hacking" tabindex="-1">Learn more about hacking</h2> <p>The following video covers:</p> <ul> <li>How and why sites are hacked.</li> <li>The process for recovering a site and removing any user-facing warnings.</li> <li>Approximate time to fix the site.</li> <li>Fixing it yourself or hiring a professional.</li> </ul> <p><devsite-video video-id="mbJvL61DOZg"></devsite-video></p> </div> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Except as otherwise noted, the content of this page is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 License</a>, and code samples are licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 License</a>. 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