WaterISAC Resource Center

(TLP:GREEN) Security & Resilience Update – Urgent PHP Vulnerabilities “PHP2Shell”, Individuals Making Unauthorized Entry into Sewer Systems, and More

(TLP:AMBER) Fusion Center Report – Nihilistic Violent Extremist’s Promotion and Use of Chemical Attacks

(TLP:AMBER+STRICT) Fusion Center Report – Individuals Making Unauthorized Entry into Sewer Systems

(TLP:CLEAR) Gate 15 White Paper – The Hostile Event Attack Cycle, 2026 Update

(TLP:CLEAR) EPA Tabletop Exercise Design Webinar for Drinking Water and Wastewater Utilities

(TLP:GREEN) Dams Sector Information Sharing Drill – Register by November 3

Tip of the Week – October 22, 2026

(TLP:CLEAR) First-of-its-Kind Study Provides Insights into Challenges Facing Emergency Management Agencies Across the Nation

Weekly Counterterrorism Report

(TLP:CLEAR) Supplemental General Security & Resilience Highlights – October 22, 2026

(TLP:GREEN) Booz Allen Testing Shows Frontier AI Can Turn OT Network Access into Physical Action

(TLP:CLEAR) FBI, CISA, and International Partners Warn of SafePay Ransomware Activity