Security holes in U.S. federal prisons can allow hackers to trigger a jailbreak by remote control. The Stuxnet worm has alerted governments around the world about the possibility of industrial control systems being targeted by hackers. A malicious cyber-intruder could “destroy the doors,” by overloading the electrical system that controls them, locking them permanently open. The security systems in most American prisons are run by. special computer equipment called. industrial. control systems. They are also used to control power plants, water treatment facilities and other critical national infrastructure.
Source: https://thehackernews.com/2011/11/computerized-prison-doors-hacked-with.html