New iPhone Security Feature: Inactivity Reboot - A Deep Dive

A recent report revealed that iPhones automatically reboot themselves, which makes it very difficult to hack these devices. Security researcher Jiska Classen discovered that this behavior is caused by a new feature called 'Inactivity Reboot,' which has now been reverse-engineered by Classen. If the last time unlocked exceeds three days, SEP notifies a kernel that kills Springboard (which is the core of iOS) and initiates a reboot. It's much more challenging to bypass it – even if the main kernel is compromised