What it means
Data-center physical security layers site boundaries, controlled entry, surveillance, visitor handling, equipment protection, media controls, and emergency procedures around critical infrastructure.
Why it matters
Physical access can defeat logical controls through theft, direct console use, media removal, tampering, or interruption of power and cooling.
Practical focus
- Define the facilities, rooms, racks, media, and support systems requiring physical protection and the security outcome it must support
- Apply layered barriers, identity-based access, monitored entry, visitor controls, and emergency access governance through documented, reviewable configuration
- Verify access records, camera coverage, forced-entry alarms, visitor activity, and control availability after changes and on a scheduled basis
- Plan for an emergency or maintenance process bypassing normal authorization, including rollback, ownership, and escalation
Common mistakes
- Enabling a feature without defining what it should protect
- Relying on defaults or one-time validation
- Granting broad exceptions that erase the control boundary
- Treating an emergency or maintenance process bypassing normal authorization as an operational surprise instead of a test case
Certification relevance
This subject appears in or supports the following certification bodies of knowledge: