![]() ![]() 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. #1664: Real system requirements for OS 2023, beware Siri creating alarms instead of timers.#1665: Important OS security updates, abusive Web notifications, solve myopia with an iPhone, Self Service Repair.#1666: Air quality websites and apps, The Password Game.#1667: OS Rapid Security Responses, 1Password and 2FA, using Siri to request music.#1668: Updated Rapid Security Responses, OS public betas, screen saver bug fixed, “Red Team Blues” book review.Really feel for the plight of your $2T company. We should be happy to be allowed to contribute to your revenue stream. And of course on top of paying you thousands of $ for hardware, it’s obvious those people should also be paying you endless subscription fees for “services” just so they get to use your fancy cloud (even though, frankly, it’s an unreliable pile of doo-doo) in spite of their own systems just sitting there and working fine. Because that’s so much better than systems people control themselves. Modern humans use the cloud for everything. Your only recourse is to get out of bed, walk through half the house to find your Mac, open a Finder window, and initiate another backup attempt from there by hand. If you by accident swipe up on the passcode page (yep, you don’t get to use FaceID for this) that appears to dismiss the page and thus cancel the backup.Īnd since in iOS 13 (not 100% sure about that version number) Apple stupidly removed sync controls from the iPhone General settings, there is no way to tell the iPhone to try again. ![]() Thanks in advance for any suggestions – or for anyone with a similar configuration who isn’t (or is) having this problem. Backing up to Mac via iTunes, non-encrypted.Syncing iPhone to Mac using Apple lightning/USB cable.I updated to iOS 15.7.1 this weekend I think it started right after that, but I can’t be sure.īTW, here’s the technical/config info for my systems: I’m trying to think of what changed that might have caused it. ![]() In the many (many) years of syncing/backing up my iPhone to my Mac, this has never happened when the iPhone is unlocked – i.e., the iPhone is awake, the desktop is visible, etc.Īnyone else seeing this behavior recently? And/or have suggestions of where in the iPhone settings I might go to stop it from happening? It’s annoying, but not serious but it certainly is mysterious. When I start syncing my unlocked iPhone to my Mac (via iTunes), the process starts and as soon as it reaches the stage where my iPhone is backed up to my Mac, the “enter your passcode” screen appears on my iPhone, titled “Enter Passcode to Start a Backup”. ![]()
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