It’s easier to crack an iPhone after it’s been unlocked once by the user after a reboot. A law enforcement tool vendor may have found a way to keep the device in that state.
GrayKey maker claims to prevent iPhone inactivity boot
Magnet Forensics claims its tools preserve iPhone data that Apple’s security features would otherwise make harder to access. The tools could give police more time to extract sensitive information from seized devices.
In iOS 18.1, Apple introduced a new privacy feature, a sort of inactivity reboot. This reboot restarts an iPhone after 72 hours without an unlock, returning it to a Before First Unlock (BFU) state.