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(TLP:AMBER+STRICT) Since last week’s update, the U.S. and Iran have continued to escalate the conflict kinetically. Yesterday, WaterISAC issued an advisory regarding a spike in hacktivist activity targeting U.S. water utilities and critical infrastructure. Among the groups driving this activity, APT IRAN—closely linked to the Iranian Revolutionary Guard Corps (IRGC)-affiliated CyberAv3ngers—has claimed a series of attacks. Given the increasing U.S. attacks on Iranian energy assets and recent claims of Iranian cyber activity targeting U.S. water utilities, WaterISAC continues to encourage all utilities to go “Shields Up” and maintain heightened vigilance.

(TLP:GREEN) Gate 15 has published a new white paper, “15 from 15: Cybersecurity Mitigation & Resilience Fundamentals,” which lays out 15 practical areas organizations can focus on to improve security, preparedness, and resilience. The paper frames these as the “blocking and tackling” of cybersecurity: durable fundamentals that remain effective even as threats, technologies, and products change. The 15 areas are Assess, People, Organizational Culture, Security Stack, Information Sharing, Multi-Factor Authentication (MFA), Network Segmentation, Patching, Backups & Encryption, Planning, Out-of-Band (OOB) Communications, Train, Test, Exercise, and Post-Mortems.