Kill'switches allow a remote entity to disable applications and delete files. "are in operating systems" AND "allow a remote entity to disable". turn off mobile phones when they are dropped. are in operating systems for smartphones and tablets.

Kill switches have a fascinating history, dating back to their use in industrial machinery where safety was paramount. They allow operators to quickly disable equipment in emergencies, protecting both machines and personnel. Fast forward to today, kill switches have become essential in cybersecurity, enabling organizations to remotely disable compromised devices to prevent data breaches or malware spread, ensuring system integrity and user safety. In the real world, kill switches are crucial for locating lost or stolen devices. For example, many smartphones now come equipped with these features, allowing owners to remotely wipe their data if their device goes missing. This not only protects personal information but also deters thieves, knowing that the device can be rendered useless at any time.