What is a Hostile Action Event?

• A. An act of violent force toward a Nuclear Power Plant or its personnel.
• B. A routine security drill.
• C. A cyberattack on IT systems.
• D. A temporary power reduction event.

Answer: (A)

Hostile Action Event refers to a deliberate act of violent force directed at a Nuclear Power Plant or its personnel. This best fits the description because it specifically captures physical aggression or force aimed at the facility or its staff, which is the essence of a hostile action. The other scenarios describe non-physical activities or threats—like a routine drill, a cyberattack on IT systems, or a temporary power reduction—which do not involve violent actions toward the plant or people. Understanding this helps responders recognize when to activate appropriate protective measures and escalate to the proper authorities.