March 3, 2023 EPA mandates states report on cyber threats to water systems type='text/javascript'> googletag. Local officials said the intruder used a remote access program to increase the sodium hydroxide—used to lower acidity, but a burn risk in high concentrations—to be added to the water by a factor of 100. "Americans deserve to have confidence in their water systems' resilience to cyberattackers," Neuberger said