NIST SP 800-53 Rev. 5 MP-7 — Media Use

What this control requires

Restrict or prohibit specific system media types using defined controls, banning unowned portable storage devices to ensure accountability and minimize risks. This control supports the Media Use Restrictions capability within the Media Protection family.

In plain English

Restrict or prohibit specific system media types using defined controls, banning unowned portable storage devices to ensure accountability and minimize risks. In practice, this means you can prove you restrictions system-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 Media Protection, the assessor will trace your implementation back to the catalogue reference (Control MP-7) 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.

Operational checklist

• Restrictions. Document the trigger, the owner and the cadence.
• Restrict. Document the trigger, the owner and the cadence.
• Security. Document the trigger, the owner and the cadence.
• Prohibit. Document the trigger, the owner and the cadence.
• Protection. Document the trigger, the owner and the cadence.
• Scope: system, controls, protection, capability, accountability, media, storage, security.

Evidence to collect

• User Device Scan. MDM compliance state per user device (Intune / Jamf / Workspace ONE).
• Infra Scan. Continuous infrastructure-posture telemetry — AWS Config, Azure Policy compliance, GCP Organisation Policy, Wiz / Prisma findings.

Endpoint compliance telemetry (Intune, Jamf) proves managed coverage. Focus: Media Use.

Common pitfalls

• Pilot MDM rollouts that quietly exclude executives or engineers; carving out the highest-risk users is the most common audit failure.

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 3.8.7 — Media Use
• ISO/IEC 27001:2022 A.8.10 — Information deletion

Related controls in NIST SP 800-53 Rev. 5

• Control MP-6(3) — Nondestructive Techniques
• Control PE-5(3) — Marking Output Devices
• Control SC-7(7) — Split Tunneling For Remote Devices
• Control AC-20(2) — Portable Storage Devices -- Restricted Use
• Control AT-3(2) — Physical Security Controls
• Control PE-10 — Emergency Shutoff

References

• NIST Computer Security Resource Center — NIST SP 800-53 Rev. 5
• Catalogue identifier: Control MP-7

Topics: endpoint securityendpoint protection