Cyberattacks targeting water and wastewater utilities have now been reported in at least 12 US states, up from seven just a week earlier, multiple sources told ABC News. Iran is the prime suspect, though officials have not confirmed its involvement.

The attacks can confuse utility managers by changing passwords and disabling alarm systems, according to people who have knowledge about the investigation. However, despite the quick spread from seven states to twelve, there have been no........

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