Operational Security (OPSEC)

Intermediate 🎖️ Military / Defense

Definition

Measures to protect sensitive information about military operations. The paranoid mindset that everyone outside the briefing room is the enemy.

Example Usage

Maintain strict OPSEC—don't discuss the deployment schedule on social media.

Origin

Military security protocol, formalized Vietnam War era

Fun Fact

One soldier's Instagram post can blow an entire operation—see Chelsea Manning.

Source: DoD Information Security doctrine, NIST standards

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