Iran suspected in hack of Minnesota water systems

The federal government issued a warning Thursday about potential cyber threats to water systems after 30 water plants in Minnesota were hit with cyberattacks that multiple U.S. officials tell ABC News may have been linked to Iran.

The Cybersecurity and Infrastructure Security Agency (CISA) said in an alert that cyber threat actors are targeting programmable logic controllers (PLCs) and modifying passwords to "to lock out operators."

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