Apple Platform Security
- Welcome
- Intro to Apple platform security
- Hardware security and biometrics
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System security
- System security overview
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Secure boot
- Boot process for iPad and iPhone devices
- Memory safe iBoot implementation
- Mac computers with Apple silicon
- Intel-based Mac computers
- Signed system volume security
- Secure software updates
- Background Security Improvements
- Operating system integrity
- Device pairing and connection security
- BlastDoor for Messages and IDS
- Lockdown Mode security
- Overview of additional macOS system security capabilities
- System security for watchOS
- Random number generation
- Communicating emergency information using satellites
- Apple Security Research Device
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Encryption and Data Protection
- Encryption and Data Protection overview
- Quantum-secure cryptography with Apple devices
- Passcodes and passwords
- Data Protection
- FileVault
- How Apple protects users personal data
- Digital signing and encryption
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App security
- App security overview
- App code signing process
- App security in iOS, iPadOS, and visionOS
- App security in macOS
- Supporting extensions
- Secure features in the Notes app
- Secure features in the Shortcuts app
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Services security
- Services security overview
- Apple Accounts and Managed Apple Accounts
- iCloud
- Passcode and password management
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Apple Pay
- Apple Pay security overview
- Apple Pay component security
- How Apple Pay keeps users purchases protected
- Credit, debit, and prepaid cards
- 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
- iMessage
- Secure Apple Messages for Business
- FaceTime security
- SharePlay security
- Nearby sharing security
- Find My
- Continuity
- Network security
- Developer kit security
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Secure device management
- Secure device management overview
- Device management
- Apple Configurator security
- Screen Time security
- Glossary
- Document revision history
- Copyright and trademarks
[]Firewall security in macOS
macOS includes a built-in firewall to protect the Mac from network access and denial-of-service attacks. It can be configured by going to System Settings > Privacy & Security (macOS 13 or later), the Security & Privacy pane of System Preferences (macOS 12 or earlier), or by using a configuration profile with the Firewall payload installed manually or provided by a device management service. The following configurations are supported:
Block all incoming connections, regardless of app.
Automatically allow built-in software to receive incoming connections.
Automatically allow downloaded and signed software to receive incoming connections.
Add or deny access based on user-specified apps.
Prevent the Mac from responding to ICMP (Internet Control Message Protocol) probing and portscan requests.