Key Facts

• Michigan found cyberattacks on nine water systems after Minnesota reported attacks on 30 sites.
• The FBI is investigating the attacks and coordinating with other agencies.
• At least seven states have reported similar incidents, but only Michigan and Minnesota are publicly identified.
• Federal agencies warned last week that Iranian hackers are targeting water and wastewater systems.
• Michigan said all affected water systems continued to operate safely despite the attacks.
• Minnesota’s affected systems mostly involved remote monitoring and control technology for water equipment.
• Local water plants are more vulnerable due to often having outdated cybersecurity protections.
• President Trump questioned if the attack was Iranian, suggesting instead Minnesota’s state government was responsible without giving proof.