More than 30 water systems across Minnesota were hit by cyberattacks Sunday and Monday, and investigators are now looking hard at Iranian hackers as the likely culprits. The FBI and Cybersecurity and Infrastructure Security Agency had already warned last week that Iranian-linked groups were actively targeting water infrastructure.
No residents lost access to safe drinking water, though the city of Braham — about 70 miles north of Minneapolis — briefly asked residents to conserve water after attackers shut down its well and treatment plant. Plymouth's water communications were also knocked offline but restored by Tuesday.
Investigators haven't officially named a suspect, but cybersecurity experts say Iran's track record and motive make it the obvious starting point.
Source: SecurityWeek