Feb 12, 2021 When the sheriff of Oldsmar, Fla., held a press conference to discuss a Feb. 5 hack into the water treatment facility that could have poisoned the city’s water supply, many cybersecurity experts stood up and took notice. The intruder seemed to have breached the plant’s industrial controls via a remote desktop monitoring application and may have taken advantage other cybersecurity weaknesses, such as lax password security and use of an unsupported operating system. That access was used to change chemical controls to dump lye into the city’s drinking water. On Feb. 11, the ...