Cops Can Bypass iPhone's Automatic Reboot To Get Into Locked Phones

An anonymous reader quotes a report from 404 Media: A company that makes phone hacking devices claims to have developed a solution that freezes iPhones in a state that lets cops more easily access sensitive data inside them, according to a video obtained by 404 Media. […] The new technology to get around inactivity reboot was developed by Magnet Forensics, the company behind GrayKey, a popular tool sold to law enforcement agencies that allows them to unlock and access data stored in iPhones and Android smartphones. Magnet has developed a new device called GrayKey Preserve and a feature for its regular GrayKey devices called Evidence Preservation Mode, according to the video.

“This is an absolute game changer for iOS forensics and a function that I wish we had years ago,” a Magnet employee says in the leaked video, specifically mentioning that the solution is targeted at the iPhone’s inactivity reboot feature and the data it makes unavailable. GrayKey Preserve and Evidence Preservation Mode are also designed to combat another iPhone feature that automatically deletes certain data — such as cached locations, and recently deleted photos and iMessages — after a certain number of days. “We’re gonna be able to preserve that data for an infinite amount of time.”

[…] 404 Media shared a transcript of the video with Jiska Classen, a researcher at the Hasso Plattner Institute who studies iPhone security. While Classen said that it’s impossible to know for sure how Magnet’s new feature works based on the video, she posited some theories and agreed that it is “quite a game changer” or “at least puts things back to where they were before inactivity reboot.” She thinks Magnet has found a way to manipulate the iPhone’s clock, effectively “slowing down time” or even “stopping the clock from ticking, even after a reboot.” Most likely, according to her, the GrayKey may disable the iPhone tasks that set data to expire. The “inactivity reboot” feature mentioned above was added to iOS in November 2024 and automatically restarts iPhones that have not been unlocked for 72 hours, making them harder for police to access using forensic tools.

Read more of this story at Slashdot.

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