Apple Platform Security
- Welcome
- Intro to Apple platform security
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- Encryption and Data Protection overview
- Passcodes and passwords
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- Data Protection overview
- Data Protection
- Data Protection classes
- Keybags for Data Protection
- Protecting keys in alternative boot modes
- Protecting user data in the face of attack
- Sealed Key Protection (SKP)
- Activating data connections securely in iOS and iPadOS
- Role of Apple File System
- Keychain data protection
- Digital signing and encryption
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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 authorisation 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
Ultra Wideband security in iOS
The new Apple‑designed U1 chip uses Ultra Wideband technology for spatial awareness — allowing iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max or later iPhone models to precisely locate other U1‑equipped Apple devices. Ultra Wideband technology uses the same technology to randomise data found on other supported Apple devices:
MAC address randomisation
Wi-Fi frame sequence number randomisation
See alsoWi-Fi privacy
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