More than 30 Minnesota water systems were hit by coordinated cyberattacks, prompting federal investigations and renewed warnings about critical infrastructure security.
More than 30 community water and wastewater systems across Minnesota have been targeted in a coordinated cyberattack, prompting state and federal authorities to launch an investigation into one of the largest recent cybersecurity incidents involving U.S. public utilities.
According to Minnesota officials, the attacks disrupted computerized systems used to operate water infrastructure in multiple communities. While officials said drinking water remained safe and no widespread contamination was reported, several affected facilities temporarily switched to manual operations as technicians worked to restore services.
The FBI, the Cybersecurity and Infrastructure Security Agency (CISA), and Minnesota IT Services are assisting with the investigation. Authorities have not officially identified those responsible, although federal agencies have recently warned that U.S. water systems face increasing cyber threats from foreign-linked hacking groups. Investigators are continuing to determine whether the incidents are connected.
Several communities reported temporary operational disruptions, including outages affecting automated controls at water treatment facilities. Emergency response teams and cybersecurity specialists were able to restore many systems while strengthening network security to prevent additional attacks.
Cybersecurity experts say the incident highlights growing concerns about the vulnerability of critical infrastructure, particularly smaller municipal utilities that often rely on older technology and have limited cybersecurity resources.
Federal officials are urging water utilities across the country to review their cybersecurity measures, disconnect unnecessary internet-connected control systems, and strengthen monitoring for suspicious activity.
Although the affected facilities continued providing safe drinking water, the attacks have renewed concerns about the resilience of essential public infrastructure against increasingly sophisticated cyber threats.
The investigation remains ongoing, and authorities are expected to release additional information as more evidence becomes available.
Quick Facts
Location: Minnesota, United States
Incident: Coordinated cyberattacks on water systems
Systems Affected: More than 30 community water and wastewater utilities
Agencies Involved: FBI, CISA, Minnesota IT Services
Water Safety: Officials say drinking water remains safe
Investigation Status: Ongoing
Frequently Asked Questions
What happened in Minnesota?
More than 30 community water and wastewater systems experienced coordinated cyberattacks that disrupted computerized operations.
Was the drinking water affected?
Officials said there is no indication that drinking water quality or safety was compromised.
Who is investigating?
The FBI, CISA, and Minnesota IT Services are investigating the attacks alongside local authorities.
Who carried out the cyberattacks?
Authorities have not officially identified those responsible. The investigation is ongoing.
What are officials advising?
Federal agencies are encouraging utilities to strengthen cybersecurity protections and monitor their systems for suspicious activity.
Minnesota Cyberattack, Water Systems, Cybersecurity, Critical Infrastructure, FBI Investigation, CISA, Technology News, US News