Federal investigators confirm multiple US water utilities hit by hackers
US and Israeli authorities confirmed that hackers had “accessed multiple US-based” water facilities that operate the Israeli-made equipment, likely by breaking into internet-connected devices with default passwords. The US and Israeli government agencies blamed hackers affiliated with the Islamic Revolutionary Guard Corps, a military branch of the Iranian government, for the activity.
https://www.cnn.com/2023/12/01/politics/us-water-utilities-hack/index.html