# Aviation Security **Entity class:** Protective-security domain ## Definition **Aviation security** protects aircraft, airports, passengers, crews, cargo, air-navigation systems, and supporting infrastructure against terrorism, sabotage, unlawful interference, and cyber-physical disruption. ## Relevance to this collection It connects [[wiki/Transportation Security|Transportation Security]], [[wiki/Zero-Day Threat Model|Zero-Day Threat Model]], [[wiki/September 11 Attacks|September 11]], and [[wiki/Critical Infrastructure|Critical Infrastructure]]. ## Relationships - **master collection:** [[collections/Terrorism, Counterterrorism, and the Intelligence Environment|Terrorism, Counterterrorism, and the Intelligence Environment]]. ## Sources / Provenance - [National Commission on Terrorist Attacks Upon the United States, Chapter 3, *The 9/11 Commission Report*, July 22, 2004](https://www.9-11commission.gov/report/911Report_Ch3.htm). **As of:** 2026-09-23