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Apple Quietly Introduced iPhone Reboot Code Which is Locking Out Cops (www.404media.co)

submitted 5 days ago by [email protected] to c/[email protected]

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Apple quietly introduced code into iOS 18.1 which reboots the device if it has not been unlocked for a period of time, reverting it to a state which improves the security of iPhones overall and is making it harder for police to break into the devices, according to multiple iPhone security experts.

On Thursday, 404 Media reported that law enforcement officials were freaking out that iPhones which had been stored for examination were mysteriously rebooting themselves. At the time the cause was unclear, with the officials only able to speculate why they were being locked out of the devices. Now a day later, the potential reason why is coming into view.

“Apple indeed added a feature called ‘inactivity reboot’ in iOS 18.1.,” Dr.-Ing. Jiska Classen, a research group leader at the Hasso Plattner Institute, tweeted after 404 Media published on Thursday along with screenshots that they presented as the relevant pieces of code.

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[–] [email protected] 73 points 5 days ago (20 children)

As a member of the intelligence community, I can almost guarantee that this is directed at the increased use of Cellebrite UFED hardware, specifically putting the device back into BFU mode, which removes cryptography-related memory allocations. This is also why you're asked for your password instead of face or fingerprint upon reboot.

[–] [email protected] 11 points 5 days ago

It also wasn't a quiet patch, users had to opt in.

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