03.05 Identification and Authentication...

Phase 2 - A suggested method would be to include in your policy, a statement that explicitly states that access to systems containing Controlled Unclassified Information (CUI) requires multi-factor authentication for all users. We should define strong password policies, including minimum length, complexity requirements, regular changes, and restrictions on password reuse. Furthermore, we need to implement a robust identity management system that governs user accounts, including provisioning, de-provisioning, and access controls based on the principle of least privilege. This system should track user activity and provide audit trails. Finally, the policy should detail procedures for verifying user identities before granting access and for revoking access when necessary, ensuring compliance with NIST 800-171 Revision 3's Identification and Authentication requirements.