Cyberattacks Targeting Water Systems in New Hampshire

• •Cyberattacks on water systems in 12 states linked to Iran.
• •New Hampshire water operators face constant probing from hackers.
• •Increased internet connectivity in water systems raises vulnerability.

In July 2026, a series of cyberattacks targeted water systems across at least 12 states, with U.S. officials tentatively linking the attacks to Iran. Although New Hampshire's water systems were not directly impacted, operators reported ongoing probing attempts by hackers. Cybersecurity experts emphasize that the increasing use of internet-connected operational technology in water systems heightens vulnerability to attacks. Local officials are scrambling to enhance defenses against these evolving threats, particularly for smaller water operators. The New Hampshire Department of Environmental Services confirmed no current impacts but acknowledged the persistent risk posed by potential cyber intrusions. Experts warn that advanced artificial intelligence is empowering malicious actors, making the threat landscape more complex.