No entity infrastructure or never reached confidence threshold on a perimeter. Visible condition — organization knows presence is absent. Common on vocabulary (most orgs), occasional on domain, rare on identity. Least dangerous because problem is known. Response: greenfield infrastructure build through L1/L2/L3 verification gates. Diagnose per-perimeter using posture assessment. Undefended vocabulary is strategic opportunity (category creation available). Build priority: identity → domain → vocabulary. Each perimeter is independent foundation.