It’s vanishingly unlikely that this would ever happen to most people: someone would have to have access to your unlocked Mac, your device, and the knowledge to run the exploit. Since local iOS/iPadOS backups lack encryption unless you add a password, the attacker might be able to extract user data from the relocated backup. In short, Fitzl showed that an attacker with physical access to your Mac and device could use macOS’s AppleMobileBackup command-line utility to trigger a backup to an unprotected location. In iOS/iPadOS 16.1 and iOS/iPadOS 15.7.1, Apple started prompting on every connection in response to a vulnerability reported by security researcher Csaba Fitzl.

(It’s also possible you would get the prompt after a major change, but that wasn’t documented or consistent.)Īn iMazing blog post explains the situation. Before this change, your device prompted for its passcode only when it was freshly set up and hadn’t yet connected to the Mac or when you connected to a new Mac. It also appeared when using the iMazing utility to trigger iOS device backups. The “Trust This Computer?” passcode prompt appeared whether connecting via USB or Wi-Fi. IPhones and iPads Now Require a Passcode on Every Backup/Syncīack in late October 2022, annoyed reports started to appear on TidBITS Talk complaining that connecting an iPhone or iPad to a Mac to back up or sync abruptly began to require entering the device’s passcode every time. #1650: Cloud storage changes for Box, Dropbox, Google Drive, and OneDrive quirky printing problem.

#1651: Dealing with leading zeroes in spreadsheet data, removing ad tracking from ckbk.#1652: OS updates, DPReview shuttered, LucidLink cloud storage.#1653: Apple Music Classical review, Authory service for writers, WWDC 2023 dates announced.1654: Urgent OS security updates, upgrading to macOS 13 Ventura, using smart speakers while temporarily blind.

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