Water system cyberattacks spread to at least 12 states

Several states are experiencing cyberattacks on their water systems after Minnesota reported at attack last week. CBS News homeland security correspondent Nicole Sganga has the latest.

Possible cyber intrusions targeting water and wastewater utilities have now been reported in at least a dozen states, multiple sources told ABC News.

At least seven states reported cyberattacks on water systems, though authorities say water quality remains safe.

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