# Compartmentation ## Definition Compartmentation restricts sensitive information to bounded groups inside a wider classified environment. Clearance alone does not grant access; authorized role and need-to-know remain relevant. ## Systems Context Compartmentation limits exposure and can reduce damage from one breach. It can also fragment institutional knowledge, complicate oversight and cause parallel teams to duplicate work without knowing it. ## Pantheon Interface [[wiki/Secrecy-Induced Proliferation|Secrecy-Induced Proliferation]] can occur across states and inside states when strategically important capabilities are developed in isolated compartments under reciprocal uncertainty.