Display the required CUI use / monitoring notice (login banner) where applicable.
What it actually means
Provide privacy and security notices consistent with applicable CUI rules — typically a logon banner stating acceptable-use and monitoring terms. Configure it on systems that handle CUI.
Pass or fail — an assessor needs a "yes" to each
- Do systems handling CUI display an approved use / security notice at logon where applicable?
What to have ready
- Screenshot or configuration of the logon banner
- Policy defining the notice content
Where teams trip up
- No banner on systems that should have one
- Banner text never defined in policy
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More in Access Control (3.1)
3.1.1 — Limit who (and what) can get in3.1.2 — Limit what users can do3.1.3 — Control the flow of CUI3.1.4 — Separate duties3.1.5 — Least privilege (especially for admins)3.1.6 — Use non-privileged accounts for routine work3.1.7 — Restrict and log privileged functions3.1.8 — Limit failed logons3.1.10 — Lock idle screens3.1.11 — End sessions automatically3.1.12 — Monitor and control remote access3.1.13 — Encrypt remote access sessions3.1.14 — Funnel remote access through managed points3.1.15 — Authorize privileged remote actions3.1.16 — Authorize wireless access first3.1.17 — Protect wireless with authentication + encryption3.1.18 — Control mobile device connections3.1.19 — Encrypt CUI on mobile devices3.1.20 — Control connections to external systems3.1.21 — Limit portable storage on external systems3.1.22 — Control what goes on public systems