Glossary
Badge Credential
A badge credential proves that its holder is authorized to pass a specific physical access point — a door, a turnstile, a gate — typically checked by a local reader against a locally cached list rather than a live network round-trip on every single use. This local-check design exists for a practical reason: a building's access points need to keep working even if network connectivity to a central system is briefly unavailable, which pushes the same freshness-versus-availability tradeoff that shows up everywhere else authorization caching does into the physical-security domain.
Revoking a badge credential quickly matters for exactly the same reason revoking any other credential quickly matters, and it depends on how often each reader actually syncs its local list against the authoritative source — a badge revoked centrally but not yet synced to a specific door's reader still works at that door until the next sync happens.