iOS 18.1 introduces 'Inactivity Reboot' security feature for iPhones

Apple added a new security feature called 'Inactivity Reboot' in iOS 18.1, which forces iPhones to reboot if they haven't been unlocked within a certain period of time—namely four days. This change was first highlighted by security researcher Jiska Classen on Mastodon and later reported by 404 Media. While law enforcement officials have expressed concerns about the feature making it harder to unlock stored iPhones for forensic purposes, experts argue it provides extra protection against thieves and other malicious actors. Apple has not publicly commented on the change.