At least 12 states face cyberattacks on their water systems, sources say
Possible cyber intrusions targeting water and wastewater utilities have now been reported in at least a dozen states, multiple sources told ABC News.
Iran is the prime suspect in the cyberattacks, which can blind utility operators by changing passwords or disabling alarms, according to the sources, though its involvement has not been officially confirmed.
There have been no widespread disruptions to water supplies or wastewater treatment so far, sources said.
The FBI is urging utilities to disconnect systems from the internet where possible, use systems with breakers and become familiar with reverting to manual controls if automated systems are compromised.
In Michigan -- one of the states affected -- state police said they are monitoring the situation and coordinating with federal partners.
The Michigan State Police said they are working with the Department of Environment, Great Lakes, and Energy to communicate with municipal water systems across the state and encourage facilities using the affected software to secure their systems and follow applicable cybersecurity guidance.
"All systems continued to operate safely, issues were addressed by local operators, and there are no known impacts that posed a public health concern," the Michigan State Police said, citing information from the Department of Environment, Great Lakes, and Energy.
The Michigan State Police said the FBI is leading the investigation and referred additional questions to the bureau.
