Apple Platform Security
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Welcome
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Introduction
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Services security overview
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Apple Pay overview
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Apple Pay components
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Secure Element and NFC controller
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Payment authorization
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Transaction-specific dynamic security code
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Pay with credit and debit cards in stores
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Pay with credit and debit cards within apps
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Paying with credit and debit cards on the web
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Contactless passes
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Render cards unusable
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Suspending, removing, and erasing cards
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Apple Cash
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Transit cards
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Credit and debit cards for transit
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Student ID cards
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Business Chat
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FaceTime
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Developer Kits overview
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HomeKit identity
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Communication with HomeKit accessories
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Local data storage
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Data synchronization between devices and users
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Home data and apps
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HomeKit and Siri
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HomeKit IP cameras
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HomeKit routers
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iCloud remote access for HomeKit accessories
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HomeKit TV Remote accessories
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Apple TV profiles for HomeKit homes
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CloudKit
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SiriKit
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DriverKit
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Camera and ARKit
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Secure device management overview
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Pairing model
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Passcode and password settings management
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Configuration enforcement
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Mobile device management (MDM)
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Automated Device Enrollment
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Apple Configurator 2
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Device supervision
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Device restrictions
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Activation Lock
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Lost Mode, remote wipe, and remote lock
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Screen Time
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Glossary
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Document Revision History
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Copyright

Passcode and password management overview
iOS, iPadOS, and macOS offer a number of features to make it easy for users to securely and conveniently authenticate to third-party apps and websites that use passwords for authentication. 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 ID. For sites that don’t support Sign in with Apple, Automatic Strong Password enable a user’s devices to automatically create, sync, and enter unique strong passwords for sites and apps. Passwords are saved to a special Password AutoFill Keychain that is user controlled and manageable, in iOS and iPadOS, by going to Settings > Passwords & Accounts > Website & App Passwords.
In macOS, 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.