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# Foreign Actors Breach Two Small Colorado Water Utilities
- URL: https://www.theamericanquorum.com/state-news-colorado-2026-09-19-a/
- Published: 2026-09-19T05:28:11.000Z
- Updated: 2026-09-19T05:28:11.000Z
- Description: Foreign actors manipulated control equipment at two small Colorado drinking-water utilities in August. Officials report no known treatment, water-quality or public-safety impact, but the breaches reached operational systems.
- Author: News Desk
- Tags: State News, Colorado

**Foreign actors breached two small, privately owned Colorado drinking-water utilities in late August and manipulated control equipment, state officials confirmed Friday, but they reported no known effects on water treatment, water quality or public safety.**

Each utility serves fewer than 200 people. The intruders changed equipment settings, disabled remote access and alarms, and altered pumping cycles, according to [Axios reporting based on confirmation from Governor Jared Polis’s office](https://www.axios.com/local/denver/2026/09/18/water-utilities-cyberattack-hackers?ref=theamericanquorum.com). State officials have not named the utilities or identified the actors, so claims assigning responsibility to a particular country or group remain unverified.

The brief disruptions were resolved, the affected systems received technical assistance and other Colorado water providers were alerted, state officials said. Denver Water separately evaluated the threat and said its system was not affected. The narrow scale and lack of a known water-quality impact limit the immediate public-health consequences, but unauthorized changes to pumping cycles and alarms show that the attackers reached operational technology rather than merely an office network.

That distinction matters because water utilities use industrial control systems to move and treat drinking water. The federal Cybersecurity and Infrastructure Security Agency says the [water and wastewater sector faces cyber, physical and contamination threats](https://www.cisa.gov/topics/critical-infrastructure-security-and-resilience/critical-infrastructure-sectors/water-and-wastewater-sector?ref=theamericanquorum.com), while the Environmental Protection Agency warns that cyberattacks on public water systems are increasing and that basic cyber hygiene can improve prevention, detection, response and recovery. EPA maintains a [water-sector cybersecurity resource hub](https://www.epa.gov/cyberwater/epa-cybersecurity-water-sector?ref=theamericanquorum.com) for utilities.

Colorado’s health department urged providers to review their security and make necessary updates. For customers, the state’s [drinking-water information portal](https://cdphe.colorado.gov/dwinfo?ref=theamericanquorum.com) provides system records, sample results, violations and inspection deficiencies. The state has not issued a boil-water notice or other consumer action tied to these incidents, and there is no evidence that customers statewide need to change how they use tap water.

The episode nevertheless exposes a difficult statewide oversight problem. Small systems often operate with limited staffing and budgets, yet internet-connected controllers can create the same pathway into pumps and treatment equipment found at larger utilities. Keeping those devices inventoried, changing default credentials, restricting remote access, segmenting operational networks and maintaining manual recovery procedures are operational responsibilities for providers rather than steps individual customers can take.

State and federal attribution remains incomplete. Officials said federal agencies are tracking attempts by an Iranian-backed group to access water and wastewater systems nationally, but Colorado could not confirm who conducted these two breaches. That uncertainty should remain explicit: the verified development is unauthorized foreign access and equipment manipulation at two small utilities, not proof that the incidents belong to any publicly identified campaign.

The practical next step is continued utility-level review and public notification if water quality or service changes. Residents who receive an alert from their provider should follow that system’s instructions; absent a local notice, the state’s report indicates no known treatment, quality or safety impact from the August intrusions.