Apple Platform Security
- Welcome
- Intro to Apple platform security
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- System security overview
- Signed system volume security
- Secure software updates
- Operating system integrity
- Activating data connections securely
- Verifying accessories
- BlastDoor for Messages and IDS
- Lockdown Mode security
- System security for watchOS
- Random number generation
- Apple Security Research Device
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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 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
- Secure Apple Messages for Business
- FaceTime security
- Glossary
- Document revision history
- Copyright
Sign in with Apple security
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 the new Apple 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 for their Apple ID. 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 antifraud signal into Sign in with Apple. This signal gives developers confidence that the new users they acquire are real people and not bots or scripted accounts.