
NIST 800-171A Rev 3: How Assessment Objectives Have Evolved
NIST expanded and reshaped assessment objectives in SP 800-171A Rev. 3, which changes evidence planning, sampling, and scoring for contractors that handle CUI.

NIST expanded and reshaped assessment objectives in SP 800-171A Rev. 3, which changes evidence planning, sampling, and scoring for contractors that handle CUI.

Continuous monitoring under NIST SP 800-171 means you operate, measure, and improve control performance with automation and human review on a defined cadence, then produce evidence that shows that operation over time.

NIST SP 800-171 Rev 3 turns many requirements into organization-defined parameters that you must set, document, and defend, and DoD now assigns specific values for a subset that contractors must use.

Mobile endpoints enter the CUI boundary as soon as users access or store CUI on them, so you need clear scope, NIST SP 800-171 controls applied to iOS and Android, and enforceable MDM or MAM policies before you allow mobile access.