““Foreign governments have disrupted some water systems with cyberattacks and may have embedded the capability to disable them in the future,” the enforcement alert says. One example it cites is Volt Typhoon, a People’s Republic of China state-sponsored cyber group that has “compromised the IT environments of multiple critical infrastructure organizations,” according to a Department of Homeland Security advisory issued in February.”

Source : The EPA is cracking down on cybersecurity threats – The Verge