CIP Flash Bulletin | Heightened Iranian Cyber Threat Activity

Originally Published June 23, 2026

This special Critical Infrastructure Protection Flash Bulletin outlines increased cyber threat activity linked to Iran amid rising regional tensions. It highlights Iran’s history of targeting U.S. infrastructure, current threat actors and tactics, key vulnerabilities, and priority mitigation strategies. Critical infrastructure sectors are advised to stay vigilant and implement immediate protections. The bulletin also includes federal resources and recommendations to strengthen preparedness.