Situation Report: Heightened Threat Environment – Potential Retaliation by Iranian Threat Actors Following U.S. Strikes on Iran (Updated September 3, 2026)

(TLP:AMBER+STRICT) The conflict between the U.S. and Iran is heating up again. Amid the ongoing U.S. economic campaign against Iran, coupled with Iranian officials threats of renewed strikes targeting the U.S. and its allies, the risk of escalation is growing. Recent events and reporting indicate the Iranian cyber threat to U.S. critical infrastructure has re-entered a heightened and particularly dangerous phase (perhaps its most dangerous phase yet) driven by renewed kinetic conflict between the U.S. and Iran. Amid the potential for escalation, WaterISAC continues to encourage all utilities to go “Shields Up” and maintain heightened vigilance.