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Hackers tried to poison Oldsmar’s water supply

Local and federal authorities are investigating after an attempt Friday to poison the city of Oldsmar’s water supply, Pinellas County Sheriff Bob Gualtieri said.

Someone remotely accessed a computer for the city’s water treatment system and briefly increased the amount of sodium hydroxide, also known as lye, by a factor of more than 100, Gualtieri said at a news conference Monday. The chemical is used in small amounts to control the acidity of water but it’s also a corrosive compound commonly found in household cleaning supplies such as liquid drain cleaners.

The city’s water supply was not affected. A supervisor working remotely saw the concentration being changed on his computer screen and immediately reverted it, Gualtieri said.

Source: Someone tried to poison Oldsmar’s water supply during hack, sheriff says

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