You can speak Modbus to a chemical reactor as freely as its own engineer. Breaking it, though, isn’t a yes or a no — it’s a question of patience.In February 2021, the lye setpoint at a Florida water plant jumped from 100 to 11,100 ppm, no exploit, no malware, just a control command the system was built to trust. Stuxnet and FrostyGoop did the same...