U.S. water infrastructure is vulnerable to hacks. Iran knows it.

No matter what becomes of the Iran war ceasefire, another form of warfare waged by Tehran against the United States is almost certain to continue: cyberattacks on the water supply.

The U.S. Cybersecurity and Infrastructure Security Agency warned on Tuesday that last month a U.S. water facility was hit with more than 1,900 hacking attempts from around the world, with Iran the principal source of the attacks.

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