By Rich Larson
Northfield officials say the city’s drinking water and wastewater systems remain secure following a series of cyberattacks that recently targeted public water systems in more than 30 Minnesota communities.
The attacks, which are under investigation by Minnesota IT Services (MNIT), the Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA), were aimed at computer systems used to help operate some municipal water utilities. State officials have emphasized that there is currently no indication that drinking water safety has been compromised in any of the affected communities.
Recent years have seen growing concern over cybersecurity threats directed at critical infrastructure, including water treatment facilities. Across the United States, federal officials have warned that water systems can be attractive targets because many rely on computerized controls and remote-access technologies to manage daily operations. As a result, cities and utilities have increasingly strengthened cybersecurity safeguards to protect essential public services.
After learning of the Minnesota incidents and receiving a security briefing, Northfield conducted its own review of local water and wastewater operations. The assessment involved the city’s Police Department, Information Technology Division and Utilities Division.
According to city officials, the review found no evidence that Northfield’s systems had been affected by the attacks.
Staff also determined that the computers used to operate the city’s water system are not connected to the internet for remote access, a safeguard that significantly reduces exposure to the type of intrusion reported elsewhere. In addition, any changes to operating systems require multiple layers of authentication before they can be implemented.
Northfield officials noted that the water system is designed to continue functioning safely even if computerized controls become unavailable, providing another layer of protection against service disruptions.
City Administrator Ben Martig said residents are rightfully concerned whenever reports surface about attacks on public water systems, but the city’s review found no impact to local operations. He added that Northfield will continue monitoring developments and working with state and federal cybersecurity partners while maintaining cybersecurity as an ongoing priority.
City officials stressed that there has been no disruption to drinking water or wastewater services and that Northfield’s drinking water remains safe to use. Residents do not need to take any action at this time.
Rich Larson is the owner and General Manager of KYMN Radio Contact him at rich@kymnradio.net
