NIST SP 800-53 Rev. 5 PE-6(1) — Intrusion Alarms And Surveillance Equipment

What this control requires

The control requires using physical intrusion alarms and surveillance equipment to monitor physical access to the facility where the system resides. These alarms alert security personnel to unauthorized access attempts, and surveillance equipment, such as video cameras and motion sensors, provides real-time monitoring and alerts for potential breaches. This control supports the Intrusion Detection and Surveillance Systems capability within the Physical and Environmental Protection family.

In plain English

The control requires using physical intrusion alarms and surveillance equipment to monitor physical access to the facility where the system resides. In practice, this means you can prove you access management-level controls on a defined cadence.

Why it matters

SP 800-53 is the catalogue every U.S. federal authorisation (FedRAMP, FISMA, CMMC) and most regulated industries point at. A missing control surfaces as a Plan of Action & Milestones (POA&M) item that an Authorizing Official must approve before the Authority To Operate is granted or renewed.

This control is rated high. Auditors expect a named owner, a remediation SLA, and a tooling artefact that evidences continuous operation.

What an auditor looks for

A 3PAO (FedRAMP) or Independent Assessor (NIST RMF) tests against NIST SP 800-53A assessment procedures. For each control they expect a documented implementation that addresses every assessment objective (Examine, Interview, Test) and an implementation summary in the System Security Plan.

Within Physical and Environmental Protection, the assessor will trace your implementation back to the catalogue reference (Control PE-6(1)) and look for objective evidence on the latest two assessment cycles.

How to implement

Physical Security

Inheritance. For cloud-only operations, inherit physical controls from the provider's SOC 2 / ISO 27001 report and document the inheritance in the SoA.

Operational checklist

• Access. Document the trigger, the owner and the cadence.
• Security. Document the trigger, the owner and the cadence.
• Detection. Document the trigger, the owner and the cadence.
• Physical. Document the trigger, the owner and the cadence.
• Review. Document the trigger, the owner and the cadence.
• Scope: management, system, personnel, time, alerts, protection, identity, monitor.

Evidence to collect

• Identity Scan. IAM / IdP exports — Entra ID, Okta, IAM Identity Center, Workspace directory — showing accounts, roles, MFA state and last sign-in.

Identity analytics (Okta, SailPoint, Access Analyzer) demonstrates least-privilege. Focus: Intrusion Alarms And Surveillance Equipment.

How it maps to other frameworks

Computed from shared tags, control component and key-operation subjects — handy when you are reconciling controls across an audit.

• NIST SP 800-171 Rev. 3 3.10.8 — Access Control for Transmission

Related controls in NIST SP 800-53 Rev. 5

• Control PE-2(3) — Restrict Unescorted Access
• Control PE-8(1) — Automated Records Maintenance And Review
• Control PE-6(4) — Monitoring Physical Access To Systems
• Control PE-2(2) — Two Forms Of Identification
• Control PE-2 — Physical Access Authorizations
• Control PE-3(1) — System Access

References

• NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5
• Catalogue identifier: Control PE-6(1)

Topics: identity accesslogging monitoringidentity managementaccess reviewphysical securityprivileged access