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.

  • catloaf@lemm.ee
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    5 days ago

    How does it work for stuff like bank apps? Do they freak out about it?

    And does it require unlocking the bootloader? I prefer to keep mine locked if possible.

    • dumbass@leminal.space
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      4 days ago

      My bank app works fine and I can use the NFC chip for payments as well, it might pay to search up your bank name and graphineos to see if anyone’s had an issue, that’s what I did to make sure.

      You have to unlock it to install but once installed they prefer you lock the bootloader back up again.