A hidden feature in iOS 18.1 will automatically reboot a locked iPhone when it is asleep but hasn't been unlocked for a while, presumably as a security measure.

The big update which introduces Apple Intelligence is here. So, is it something you should install on your iPhone?

OS 18.1 is the first iOS 18 update with Apple Intelligence capabilities, and that's what a lot of the coverage about the new software

Apple made your iPhone more secure and apparently no one really noticed until law enforcement got locked out of devices they had previously or were trying to crack. Last week, 404 Media reported on a new phenomenon occurring that was freaking out law enforcement.