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Apple Platform Security
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Table of Contents
Apple Platform Security
Welcome
Intro to Apple platform security
Hardware security and biometrics
Hardware security overview
Apple SoC security
The Secure Enclave
Optic ID, Face ID, and Touch ID
Biometric security
Magic Keyboard with Touch ID
Optic ID, Face ID, Touch ID, passcodes, and passwords
Optic ID matching security
Facial matching security
Uses for Optic ID, Face ID, and Touch ID
Secure intent and connections to the Secure Enclave
Hardware microphone disconnect
Mac on-screen camera indicator light
Express Cards with power reserve
System security
System security overview
Secure boot
Boot process for iPad and iPhone devices
Memory safe iBoot implementation
Mac computers with Apple silicon
Boot process
Boot modes
Paired recoveryOS restrictions
Startup Disk security policy control
LocalPolicy signing-key creation and management
Contents of a LocalPolicy file for a Mac with Apple silicon
Intel-based Mac computers
Boot process
Boot modes
Startup Security Utility
Firmware password protection
recoveryOS and diagnostics environments
Signed system volume security
Secure software updates
Background Security Improvements
Operating system integrity
Device pairing and connection security
Physical pairing model security
Activating data connections securely
Verifying accessories
Automatically unlock Apple devices
BlastDoor for Messages and IDS
Lockdown Mode security
Overview of additional macOS system security capabilities
Additional macOS system security capabilities
System Integrity Protection
Trust caches
Peripheral processor security
Rosetta 2 on a Mac with Apple silicon
Direct memory access protections
Securely extending the kernel
Option ROM security
UEFI firmware security in an Intel-based Mac
System security for watchOS
Random number generation
Communicating emergency information using satellites
Apple Security Research Device
Encryption and Data Protection
Encryption and Data Protection overview
Quantum-secure cryptography with Apple devices
Passcodes and passwords
Data Protection
Data Protection overview
Data Protection
Data Protection classes
Keybags for Data Protection
Protecting keys in alternate boot modes
Protecting user data in the face of attack
Sealed Key Protection (SKP)
Role of Apple File System
Keychain data protection
FileVault
Volume encryption with FileVault
Managing FileVault
How Apple protects users’ personal data
Protecting app access to user data
Protecting access to user’s health data
Digital signing and encryption
App security
App security overview
App code signing process
App security in iOS, iPadOS, and visionOS
Intro to app security for iOS, iPadOS, and visionOS
About App Store security
Security of runtime process
App protection and app groups
App security in macOS
Intro to app security for macOS
App code signing process
Gatekeeper and runtime protection
Protecting against malware
Controlling app access to files
Supporting extensions
Secure features in the Notes app
Secure features in the Shortcuts app
Services security
Services security overview
Apple Account and Managed Apple Account
Apple Account security
Managed Apple Account security
iCloud
iCloud security overview
iCloud encryption
Advanced Data Protection for iCloud
iCloud Backup security
iCloud Private Relay security
Account recovery contact security
Legacy Contact security
Passcode and password management
Passcode security overview
Sign in with Apple security
Automatic strong passwords
Password AutoFill security
App access to saved passwords
Password security recommendations
Password Monitoring
Sending passwords
Credential provider extensions
iCloud Keychain
iCloud Keychain security overview
Secure keychain syncing
Secure iCloud Keychain recovery
Escrow security for iCloud Keychain
Apple Pay
Apple Pay security overview
Apple Pay component security
How Apple Pay keeps users’ purchases protected
Credit, debit, and prepaid cards
Card provisioning security overview
Adding credit or debit cards to Apple Pay
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
Using Apple Wallet
Access using Apple Wallet
Access key types
Car key security
Car key security
Car key transactions
Adding transit and eMoney cards to Apple Wallet
IDs in Apple Wallet
IDs in Apple Wallet
Security of IDs in Apple Wallet
iMessage
iMessage security overview
How iMessage sends and receives messages
Check In security
Secure iMessage name and photo sharing
Secure Apple Messages for Business
FaceTime security
Find My
Find My security
Locating missing devices
Continuity
Continuity security overview
Handoff security
iPhone cellular call relay security
iPhone Text Message Forwarding security
Instant Hotspot security
Network security
Network security overview
TLS security
IPv6 security
VPN security
Wi-Fi security and privacy
Security features when connecting to wireless networks
Wi-Fi security with Apple devices
Privacy features when connecting to wireless networks
Wi-Fi privacy with Apple devices
Bluetooth security
Ultra Wideband security in iOS
Single Sign-on security
AirDrop security
Wi-Fi password sharing security
Firewall security in macOS
Developer kit security
Developer kit security overview
ARKit security
DriverKit security
EnergyKit data security
HomeKit security
Communication security
Data security
Securing routers with HomeKit
Camera security
Security with Apple TV
NFC & SE Platform security
ReplayKit security
SiriKit security
WidgetKit security
Secure device management
Secure device management overview
Device management
Device management security overview
Managed Device Attestation
Attestation process security
Configuration enforcement
Automated Device Enrollment
Activation Lock security
Managed Lost Mode and remote wipe
Shared iPad security
Apple Configurator security
Screen Time security
Glossary
Document revision history
Copyright and trademarks
Copyright and trademarks
© 2026 Apple Inc. All rights reserved.
Use of the “keyboard” Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws.
Apple, the Apple logo, AirDrop, AirPlay, App Clips, Apple Books, Apple Card, Apple Cash, Apple Music, Apple Pay, Apple TV, Apple Vision Pro, Apple Wallet, Apple Watch, AppleScript, ARKit, Boot Camp, CarPlay, Face ID, FaceTime, FileVault, Find My, Finder, FireWire, Handoff, HealthKit, HomeKit, HomePod, HomePod mini, iMac, iMac Pro, iMessage, iPad, iPadOS, iPad Air, iPadOS, iPhone, iTunes, Keychain, Lightning, Mac, Mac Catalyst, Mac Pro, MacBook, MacBook Air, MacBook Pro, Macintosh, macOS, Magic Keyboard, Objective-C, Optic ID, OS X, QuickType, Rosetta, Safari, Siri, Siri Remote, SiriKit, Swift, Spotlight, Touch Bar, Touch ID, TrueDepth, tvOS, visionOS, watchOS, and Xcode are trademarks of Apple Inc., registered in the U.S. and other countries and regions.
EnergyKit and SharePlay are trademarks of Apple Inc.
App Store, AppleCare, Apple Messages for Business, CloudKit, iCloud, iCloud Drive, iCloud Keychain, iCloud+, iTunes Store, and Tap to Cash are service marks of Apple Inc., registered in the U.S. and other countries and regions.
Apple
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apple.com
IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Apple is under license.
Java is a registered trademark of Oracle and/or its affiliates.
UNIX® is a registered trademark of The Open Group.
Other product and company names and logos mentioned herein may be trademarks of their respective companies.
Every effort has been made to ensure that the information in this manual is accurate. Apple is not responsible for printing or clerical errors. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.
Some apps are not available in all areas. App and feature availability is subject to change.
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