US cyber defence agency warns of water attacks after Minnesota targeted

US federal agencies have previously issued advisories warning about the threat of cyber attacks on water and wastewater systems from foreign groups, including groups from Iran.

A US cyber defence agency is warning of a significant increase in hackers targeting water and wastewater systems.

The CISA's warning comes after Minnesota’s state IT agency said more than 30 community water systems in the state faced a “coordinated cyberattack” earlier this week.