Apple Platform Security
- Welcome
 - Intro to Apple platform security
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- System security overview
 - Signed system volume security
 - Secure software updates
 - Rapid Security Responses
 - Operating system integrity
 - BlastDoor for Messages and IDS
 - Lockdown Mode security
 - System security for watchOS
 - Random number generation
 - Apple Security Research Device
 
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- Services security overview
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- Apple Pay security overview
 - Apple Pay component security
 - How Apple Pay keeps users’ purchases protected
 - Payment authorization with Apple Pay
 - Paying with cards using Apple Pay
 - Contactless passes in Apple Pay
 - Rendering cards unusable with Apple Pay
 - Apple Card security
 - Apple Cash security
 - Tap to Pay on iPhone
 
 - Secure Apple Messages for Business
 - FaceTime security
 
 - Glossary
 - Document revision history
 - Copyright
 

Password security overview
iOS, iPadOS, macOS, and visionOS make it easy for users to authenticate to third-party apps and websites that use passwords. The best way to manage passwords is not to have to use one. Sign in with Apple lets users sign in to third-party apps and websites without having to create and manage an additional account or password while protecting the sign-in with their two-factor authentication for Apple Account. For sites that don’t support Sign in with Apple, the Automatic Strong Password feature enable a user’s devices to automatically create, sync, and enter unique strong passwords for sites and apps. On iPhone, iPad, and Apple Vision Pro, passwords are saved to a special Password AutoFill keychain that’s user controlled and manageable by going to Settings > Passwords.
On a Mac, saved passwords can be managed in Safari Passwords preferences. This sync system can also be used to sync passwords that are manually created by the user.