A preliminary investigation found that a cyberattack this week on dozens of municipal water systems in Minnesota was probably the work of Iranian hackers. There were no indications that any water supply had been rendered unsafe to drink.

nyti.msU.S. Sees Iran as Likely Behind Cyberattack on Minnesota Water SystemsInvestigators cautioned that the assessment was preliminary. There were no indications that any water supply had been rendered unsafe to drink.