Computer intruder tried to poison Florida city’s drinking water with lye

Change boosting sodium hydroxide level was reversed before anyone got hurt.



Someone broke into the computer system of a water treatment plant in Florida and tried to poison drinking water for a Florida municipality’s roughly 15,000 residents, officials said on Monday.


The intrusion occurred on Friday evening, when an unknown person remotely accessed the computer interface used to adjust the chemicals that treat drinking water for Oldsmar, a small city that’s about 16 miles northwest of Tampa. The intruder changed the level of sodium hydroxide to 11,100 parts per million, a significant increase from the normal amount of 100 ppm, Pinellas County Sheriff Bob Gualtieri said in a Monday morning press conference.


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Courtesy of Ars Technica

Article Author: Dan Goodin



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