ISAC issues critical‑infrastructure alert
An ISAC advisory flagged elevated cyber and physical threats tied to Middle East tensions and urged operators to rehearse cross‑domain response playbooks and align physical and cyber monitoring. The advisory stresses that energy, transport and communications remain at higher risk for blended attacks.
A cross‑sector bulletin was formally released on March 11, 2026, by a coalition of ISACs — a single joint posting noting TLP:CLEAR for wide member distribution. gate15.global The advisory specifically identifies Iranian state‑sponsored actors, aligned hacktivists and cybercriminal groups and records DDoS and phishing among observed tactics. gate15.global Recommended operational steps in the document include increasing telemetry and detection coverage, conducting vendor/remote‑access reviews and running tabletop exercises while coordinating with federal partners. waterisac.org The Electricity ISAC’s recent GridEx findings also call out communications‑resilience and cross‑sector drills as top priorities. industrialcyber.co Since publication, WaterISAC, Health‑ISAC and Aviation ISAC have posted the advisory to member portals and urged members to apply the listed mitigations; Gate 15 provided support for the joint release. waterisac.org
