Are hacks of U.S. water facilities a new front in the Iran war?
August 12, 2026 – Published on NPR
On a recent Monday morning in Braham, Minn., a local water operator made an unsettling discovery — the pump at the treatment plant wasn’t working, threatening the flow of water to people’s homes.
While investigating the root cause, crews took the plant offline, and the city urged Braham’s 1,700 or so residents to conserve water while they drew on a backup supply stored in a local tank.
But what Braham officials quickly learned, after connecting with Minnesota state IT teams, was that they were not alone in the outages. The cause was a “coordinated cyberattack” against industrial technology nationwide, and cybersecurity experts and federal officials suspected Iran may be to blame.
While the hackers failed to compromise the water supply, they succeeded in inspiring headlines and provoking uncertainty. And the scope, scale and real-world impacts of the attacks, like the one in Braham, have been remarkable even to the experts.
Securing critical infrastructure is a unique challenge, because industries from water to power rely on the same aging, specialized technology that can’t easily be replaced, patched, or secured, explains Patrick Gillespie, a security expert who specializes in what’s called operational technology at GuidePoint Security.
Operational technology, or OT, monitors and controls physical processes in the real world, rather than software which runs virtual programs like email or word processing. “This technology is decades old,” Gillespie said.
The water sector is no different.
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