American Water security incident history
Hacking, data breaches and other security incidents involving American Water, with related coverage.
Incidents: 2 · Most recent
American Water, largest US water utility, hit by cyberattack
American Water, the largest water utility in the United States, was hit by a cyberattack. The attack and its impact on customers were reported on October 7-8, 2024.
Related reports: 7 · last report →American Water cyberattack forces online services offline
Impact: Shutdown of online services and temporary pause in customer billing
American Water was hit by a cyberattack that led it to shut down its online services and temporarily pause customer billing. The company determined that its water and wastewater facilities were not affected. On October 11, 2024, it began bringing the systems it had shut down back online.
Related reports: 16 · last report →