Minnesota officials are investigating cyberattacks against municipal systems in the state for possible links to Iranian groups, according to a statement released Thursday.
State water operations were targeted by cyberattacks on Sunday and Monday.
“I don’t think there was an Iranian cyberattack. I think Minnesota ought to get its act together,” a state official said.
The Cybersecurity and Infrastructure Security Agency (CISA) warned water and wastewater operators that they could be similarly attacked, noting a significant increase in incidents involving outside actors changing passwords and locking out operators on “programmable logic controllers.” CISA urged facilities to remove these systems from the internet as soon as possible.
The agency reported that such activities have resulted in boil water notices and sustained manual operations.
While the warning did not mention Iran or Minnesota specifically, U.S. officials told ABC News that investigators are working to determine whether the hostile regime is responsible for the cyberattacks.
Minnesota Water Systems Under Cyber Siege as Iran Links Unravel
