Apple indeed added a feature called "inactivity reboot" in iOS 18.1. This is implemented in keybagd and the AppleSEPKeyStore kernel extension. It seems to have nothing to do with phone/wireless network state. Keystore is used when unlocking the device. github.com/search?q=repo%…
New from 404 Media: police freaking out at iPhones stored for forensic examination mysteriously rebooting themselves. This makes brute forcing much harder. Cops hypothesize Apple pushed an update that tells nearby iPhones to reboot if not on phone network 404media.co/police-freak-o…