NIST 800-171 - System Use Notification (3.1.9)

Overview:
Provide privacy and security notices consistent with applicable CUI rules.

Action Items:
3.1.9[a]
Determine if: privacy and security notices required by CUI-specified rules are identified, consistent, and associated with the specific CUI category.

3.1.9[b]
Determine if: privacy and security notices are displayed.

POTENTIAL ASSESSMENT METHODS AND OBJECTS

1
Examine: Privacy and security policies, procedures addressing system use notification; documented approval of system use notification messages or banners; system audit logs and records; system design documentation; user acknowledgements of notification message or banner; system security plan; system use notification messages; system configuration settings and associated documentation; other relevant documents or records].

2
Interview: System or network administrators; personnel with information security responsibilities; personnel with responsibility for providing legal advice; system developers].

3
Test: Mechanisms implementing system use notification].

Related Documents (document name and content will vary by organization):
1) Privacy and security policies, procedures addressing system use notification
2) documented approval of system use notification messages or banners
3) system audit logs and records
4) system design documentation
5) user acknowledgements of notification message or banner
6) system security plan
7) system use notification messages
8) system configuration settings and associated documentation
9) other relevant documents or records

Additional Guidance:
System use notifications can be implemented using messages or warning banners displayed before individuals log in to organizational systems. System use notifications are used only for access via logon interfaces with human users and are not required when such human interfaces do not exist. Based on an assessment of risk, organizations consider whether a secondary system use notification is needed to access applications or other system resources after the initial network logon. Where necessary, posters or other printed materials may be used in lieu of an automated system banner. Organizations should consult with the Office of the General Counsel for legal review and approval of warning banner content.