Tip of the Week – July 30, 2026

Keys & Locks: The Overlooked Security Risk

Robust key and lock systems are essential for mitigating physical security threats at water and wastewater utilities, where unauthorized access to sensitive assets can pose serious risks to public safety and operational integrity. Keys and locks form the foundation of physical security, yet they are often overlooked in favor of electronic solutions. Understanding how your key system is structured—whether it uses restricted keyways, master key hierarchies, or standard locks—is critical to reducing vulnerabilities.

Resource(s): (TLP:CLEAR) WaterISAC Physical Security and Resilience Advisory Committee: Keys & Locks – The Overlooked Security Risk – Fact Sheet