← Back to all briefings
Infrastructure 5 min read Published Updated Credibility 94/100

Infrastructure Resilience Briefing — May 10, 2024

NIST finalized SP 800-171 Revision 3, adding advanced threat safeguards, supply-chain controls, and alignment with SP 800-172A for protecting controlled unclassified information.

Zeph Tech Research Lead

Research lead, Zeph Tech

Timeline plotting source publication cadence sized by credibility.
3 publication timestamps supporting this briefing. Source data (JSON)

Executive briefing: The National Institute of Standards and Technology released Special Publication 800-171 Revision 3 on May 10, 2024. The update refreshes security requirements for protecting controlled unclassified information (CUI) in nonfederal systems, incorporating advanced persistent threat safeguards from SP 800-172, supply-chain due diligence, and clarified assessment objectives. NIST simultaneously issued companion assessment procedures in SP 800-171A Revision 3.

Key changes

  • Enhanced requirements. New controls address anomaly detection, continuous monitoring, and secure administration to counter sophisticated adversaries.
  • Supply-chain focus. Organizations must vet external service providers, manage tampering risks, and document supplier security performance for CUI environments.
  • Assessment clarity. Updated objectives align with SP 800-171A Rev. 3, simplifying preparation for Defense Federal Acquisition Regulation Supplement (DFARS) assessments.

Operational priorities

  • Gap analysis. Map existing security programs against the revised requirements, prioritizing logging, continuous monitoring, and administrative control enhancements.
  • Supplier engagement. Review managed service, cloud, and manufacturing partners to ensure CUI protections align with the new supply-chain safeguards.
  • Assessment readiness. Update system security plans, plans of action and milestones, and evidence repositories to align with SP 800-171A Rev. 3 testing steps.

Program assurance

  • Monitoring upgrades. Invest in security operations tooling that can deliver anomaly detection, centralized logging, and automated response in CUI enclaves.
  • Training. Educate administrators and supplier contacts on new configuration baselines and supply-chain documentation expectations.
  • Contract alignment. Update DFARS and subcontract clauses to reference Revision 3 requirements and ensure primes and subcontractors commit to the enhanced controls.

Sources

Zeph Tech is updating CUI compliance programs with Revision 3 control mappings, supplier attestations, and assessment evidence packs.

Timeline plotting source publication cadence sized by credibility.
3 publication timestamps supporting this briefing. Source data (JSON)
Horizontal bar chart of credibility scores per cited source.
Credibility scores for every source cited in this briefing. Source data (JSON)

Related briefings

Curated signals from the same pillar or overlapping topics.

Continue in the Infrastructure pillar

Return to the hub for curated research and deep-dive guides.

Visit pillar hub

Latest guides

  • NIST SP 800-171
  • Controlled unclassified information
  • Supply-chain security
  • Continuous monitoring
Back to curated briefings