A security engineer made the discovery at DefCon hackers’ conference. Prison guards use the internet on the very same computers that control their security systems. One click of a stray link, and the wall of security could fall away from prison walls. A prison’s cell doors accidentally opened after a power blackout in 2011. A hacker says he has not tested it out on a living, breathing prison, but it’s worried that prison guards are using the same internet as the computers they control their systems.”]
Source: https://gizmodo.com/hackers-could-help-prisoners-escape-5829056