US, Canada, and UK government agencies warn of pro-Russia hacktivist groups attacking North American and European critical infrastructure.

The cyberattacks focus on industrial control systems in water, wastewater, dams, energy, and food and agriculture sectors.

Initiated in 2022, these ongoing cyber operations exploit exposed systems and utilize default passwords.

Effects range from nuisance to physical disruptions, including altered settings and disabled alarms in water treatment facilities.

Authorities recommend that operators implement mitigation measures to defend against these cybersecurity threats.

Hacktivist groups may overstate attack impacts on social media, while victim reports suggest more limited damage.