Oldsmar

Rick Swearingen, head of the Florida Department of Law Enforcement, says the water plant wasn't using the security technology that has been widely available for years.

Christopher Krebs, who led the Cybersecurity and Infrastructure Security Agency in the Trump administration, says the hack could have come from a disgruntled employee, or a foreign government.

Authorities say a cyber intruder tried to poison Oldsmar’s water supply last week.