NIST SP 800-171
Control 3.1.9
Provide Privacy and Security Notices
CMMC-RP Certified Team
24+ Years Experience
2,500+ Clients Served
Official Requirement
Provide privacy and security notices consistent with applicable CUI rules.
What This Means in Plain English
When users log in to your systems, they should see a warning banner telling them the system is for authorized use only, that their activity may be monitored, and that unauthorized use may result in penalties.
How Petronella Implements This Control
Petronella Technology Group implements this control through:
- Login banners on all Windows systems via Group Policy displaying authorized use warnings
- Microsoft 365 login page customized with CUI handling notice and consent acknowledgment
- VPN login portal displaying privacy and security notice before connection
- SSH banners on all Linux servers with authorized-use warnings
- ComplianceArmor maintaining approved banner text reviewed annually by legal counsel
Assessment Guidance
Assessors will verify login banners appear on workstations, servers, VPN portals, and web applications, check that banner text meets organizational and federal requirements, and confirm users must acknowledge the notice before gaining access.
Common Implementation Gaps
- No login banners configured on any systems
- Banner text that is generic and does not reference CUI or monitoring
- Banners present on desktops but missing from VPN and cloud portals
- No requirement for users to acknowledge the banner
- Banner text not reviewed or updated for regulatory changes
Cross-Framework Mapping
| Framework | Mapped Controls |
|---|---|
| NIST SP 800-53 | AC-8 |
Need Help Implementing 3.1.9?
Our CMMC-RP certified team can assess your current compliance posture and build a remediation plan.
Schedule a Compliance Assessment