This private key pair and the secret are never sent to Apple and are synced only among the user’s other devices in an end-to-end encrypted manner using iCloud Keychain. Additionally, a 256-bit secret SK 0 and a counter i is initialized to zero. When offline finding is enabled in Find My settings, an elliptic curve (EC) P-224 private encryption key pair noted is generated directly on the device where d is the private key and P is the public key. There is minimal impact on battery life and cellular data plan usage, and user privacy is better protected.įind My is built on a foundation of advanced public key cryptography. This entire interaction is end-to-end encrypted, anonymous, and designed to be battery and data efficient. When a device has offline finding enabled, it also means that it can be located by other participants in the same way. Any iOS, iPadOS, or macOS device with “offline finding” enabled in Find My settings can act as a “finder device.” This means the device can detect the presence of another missing offline device using Bluetooth and then use its network connection to report an approximate location back to the owner. Using Bluetooth and the hundreds of millions of iOS, iPadOS, and macOS devices in active use around the world, a user can locate their missing device even if it can’t connect to a Wi-Fi or cellular network. Find My even works with a Mac that is offline and asleep. Those nearby devices then relay the detected location of the missing device to iCloud so users can locate it in the Find My app-all while protecting the privacy and security of all the users involved. Find My works offline by sending out short range Bluetooth signals from the missing device that can be detected by other Apple devices in use nearby. An online device can simply report its location to the user via iCloud. Find My can help users locate a missing device, even an offline Mac. The Find My app combines Find My iPhone and Find My Friends into a single app in iOS, iPadOS, and macOS. The Find My app for Apple devices is built on a foundation of advanced public key cryptography. iPhone Text Message Forwarding security.How iMessage sends and receives messages.Adding transit and eMoney cards to Apple Wallet.Rendering cards unusable with Apple Pay.Adding credit or debit cards to Apple Pay.How Apple Pay keeps users’ purchases protected.Intro to app security for iOS and iPadOS.Protecting access to user’s health data.How Apple protects users’ personal data.Activating data connections securely in iOS and iPadOS.Protecting user data in the face of attack.Protecting keys in alternate boot modes.Encryption and Data Protection overview.UEFI firmware security in an Intel-based Mac.Additional macOS system security capabilities.recoveryOS and diagnostics environments.Contents of a LocalPolicy file for a Mac with Apple silicon.LocalPolicy signing-key creation and management.Boot process for iOS and iPadOS devices.Secure intent and connections to the Secure Enclave.Face ID, Touch ID, passcodes, and passwords.
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