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

Business Chat
Business Chat is a messaging service that enables users to communicate with businesses using the Messages app. Only users can initiate the conversation, and the business receives an opaque identifier for the user. The business doesn’t receive the user’s phone number, email address, or iCloud account information. When the user chats with Apple, Apple receives a Business Chat ID associated with the user’s Apple ID. Users remain in control of whether they want to communicate. Deleting a Business Chat conversation removes it from the user’s Messages app and blocks the business from sending further messages to the user.
Messages sent to the business are individually encrypted between the user’s device and Apple’s messaging servers. Apple’s messaging servers decrypt these messages and relay them to the business over TLS. Businesses’ replies are similarly sent over TLS to Apple’s messaging servers, which then reencrypt the message to the user’s device. As with iMessage, messages are queued for delivery to offline devices for up to 30 days.