cisa-advisory

Iran-Linked Actors Are Disrupting U.S. Water and Energy PLCs: Inside CISA/FBI Advisory AA26-097A (2026)

A joint FBI, CISA, NSA, EPA, DOE and Cyber Command advisory (AA26-097A, April 2026) warns that Iranian-affiliated actors are now causing operational disruption to internet-exposed PLCs across U.S. water, energy, and government facilities. Through May 2026 it is the defining OT threat. We unpack the campaign and the defense.