NIST SP 800-53 Rev. 5·Control SI-4(14)·high·Component: System and Information Integrity

What this control requires

Employ a wireless intrusion detection system to identify rogue wireless devices and detect attempts of attacks, potential compromises, or breaches to the system. This includes scanning not only within facilities but also outside to identify unauthorized wireless access points that may pose a security threat. This control supports the Wireless Intrusion Detection System (WIDS) capability within the System and Information Integrity family.
— NIST SP 800-53 Rev. 5, Control SI-4(14)

In plain English

Employ a wireless intrusion detection system to identify rogue wireless devices and detect attempts of attacks, potential compromises, or breaches to the system. 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 System and Information Integrity, the assessor will trace your implementation back to the catalogue reference (Control SI-4(14)) and look for objective evidence on the latest two assessment cycles.

How to implement

Endpoint Protection

MDM. Make MDM enrollment a hard gate for device access (Intune compliance + Conditional Access, or Jamf + Okta device trust). Unmanaged devices simply don't get a session token.

EDR. Deploy CrowdStrike / SentinelOne / Defender for Endpoint to every server and laptop; alert on any host that stops sending telemetry for >24h.

Vulnerability Management

Scanners. Pair an unauthenticated scanner (Nessus / Qualys / Tenable.io) for external surface with an authenticated agent for OS/library CVEs on every host.

SLA. Document remediation SLAs by CVSS / EPSS: critical 7 days, high 30 days, medium 90 days; report monthly trend to leadership.

Containers. Scan images in CI (Trivy / Grype / Snyk Container) AND at runtime; block deploys on critical findings without exception.

Operational checklist

  • Access. Document the trigger, the owner and the cadence.
  • Information. 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.
  • Protection. Document the trigger, the owner and the cadence.
  • Scope: management, information, system, only, threat, protection, capability, vulnerability.

Evidence to collect

  • User Device Scan. MDM compliance state per user device (Intune / Jamf / Workspace ONE).

Endpoint compliance telemetry (Intune, Jamf) proves managed coverage. Focus: Wireless Intrusion Detection.

Common pitfalls

  • Pilot MDM rollouts that quietly exclude executives or engineers; carving out the highest-risk users is the most common audit failure.
  • Scans that hit only the perimeter; missing authenticated scans of OS, runtime libs and base images so most CVEs are invisible.

Related controls in NIST SP 800-53 Rev. 5

References

Topics: endpoint securityendpoint protectionthreat intelligencevulnerability management