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Apple launches end-to-end encryption for iCloud data

Currently available in the U.S. for members of the Apple Beta Software Program and coming to all U.S. users by the end of the year (with the rest of the world to follow in 2023), Advanced Data Protection gives iCloud users’ trusted devices (e.g. iPhones and Macs) sole access to the encryption keys for the bulk of their data. (For the uninitiated, encryption keys are the random strings of bits specifically generated to scramble and unscramble data.) Once the feature is enabled, Apple servers can’t modify certain iCloud settings on behalf of users or access data stored in iCloud backups, Photos, Notes and CloudKit fields that third-party developers opt to mark as encrypted. Prior to the rollout of Advanced Data Protection, iCloud users couldn’t prevent Apple from pouring through the contents of device backups, including text messages and contacts, if it so chose. Readers might recall the tech giant’s fight with the FBI over the San Bernadino shooter’s encrypted iPhone data, during which the agency attempted to force Apple through the courts to unlock a locked iPhone. At the time, Apple argued the FBI could instead access the data it sought via the unencrypted iCloud backups on its servers. Missing Attachment Notably, Advanced Data Protection doesn’t support iWork collaboration, the Shared Albums feature in Photos, iCloud Mail, Contacts or Calendar; Apple blames the interoperability requirements. And to enable the feature, users must enroll in two-factor authentication for their Apple ID and set a password or passcode on their devices, as well as update those devices to the newest available software (iOS 16.2, iPadOS 16.2, macOS 13.1, tvOS 16.2, watchOS 9.2 and the latest version of iCloud for Windows). Managed Apple IDs and child accounts aren’t supported, Apple clarifies in a support document. For now, Advanced Data Protection is an Apple ID-only affair. A word to the wise, the penalty for failing to set a recovery method for Advanced Data Protection is steep. Apple notes that if the recovery fails — for instance, if a recovery contact’s information is out of date — any encrypted iCloud data is as good as lost. Alongside Advanced Data Protection, Apple announced two other security-related capabilities coming to its product ecosystem: iMessage Contact Key Verification and Security Keys. iMessage Contact Key Verification allows users “who face extraordinary digital threats,” such as journalists and members of government, to choose to further verify that they’re messaging only with the people that they intend. Apple says that iMessage Contact Key Verification will send an alert if an adversary breaches cloud servers to eavesdrop on a person’s encrypted communications, and allow users to compare a special ID-verifying contact verification code in person, on FaceTime or through a secure call. Security Keys, meanwhile, builds on Apple’s existing two-factor authentication system, requiring a hardware security key as one of the two factors to authenticate a person’s Apple ID credentials. Hardware keys come in a range of flavors and price ranges, and typically use Bluetooth, NFC or USB to perform authentication. Apple says that both iMessage Contact Key Verification and Security Keys for Apple ID will be available globally starting in 2023. Apple launches end-to-end encryption for iCloud data by Kyle Wiggers originally published on TechCrunch

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