Published · United States (federal)
NIST CSFGuidance document
NIST releases small-business primer on assessing CUI security requirements
NIST released SP 800-171A Revision 3 on 16 September 2026, offering a small‑business primer on assessing CUI security requirements.
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What happened
- It references related NIST publications and includes supplemental material for cybersecurity.
- No new regulatory penalties are introduced.
Why it matters
Firms that handle CUI under federal contracts should review the new guidance to ensure their security assessments align with the updated controls.
Business impact
Adopting the revised assessment framework may require updating internal audit procedures and training programs.
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