Grumpy Old Geeks Topics Industrial control systems security Topic Industrial control systems security 2 mentions in 1 episode The security of operational systems such as electrical, gas, and water infrastructure. Mentions 556: Leaning Out Jun 3, 2022 35:21 It's focused on ICS security. That's industrial control systems. 36:19 OT is Operational Technology. So OT are the valves and switches.