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

Sign in with Apple
Sign in with Apple is a privacy-friendly alternative to other single sign-on systems. It provides the convenience and efficiency of one-tap sign-in while giving the user more transparency and control over their personal information.
Sign in with Apple allows users to set up an account and sign in to apps and websites using the Apple ID they already have, and it gives them more control over their personal information. Apps can only ask for the user’s name and email address when setting up an account, and the user always has a choice: They can share their personal email address with an app, or choose to keep their personal email private and use Apple’s new private email relay service instead. This email relay service shares a unique, anonymized email address that forwards to the user’s personal address so they can still receive useful communication from the developer while maintaining a degree of privacy and control over their personal information.
Sign in with Apple is built for security. Every Sign in with Apple user is required to have two-factor authentication enabled. Two-factor authentication helps secure not only the user’s Apple ID but also the accounts they establish with their apps. Furthermore, Apple has developed and integrated a privacy-friendly anti-fraud signal into Sign in with Apple that gives developers confidence that the new users they acquire are real people and not bots or scripted accounts.