Mapped to NIST 800-171 Requirement: 3.1.4
CMMC Assessment Objective: AC.L2-3.1.4[a]
What This Objective Means
Separation of duties (SoD) is a foundational principle in cybersecurity and internal control. This objective requires you to:
• Identify specific roles or functions that should not be performed by the same person
• Document those decisions
• Build that separation into your access control and organizational processes
Examples:
• A system administrator who can configure security settings should not also audit those settings
• A developer should not deploy unreviewed code directly to production systems
• A person who approves CUI access should not also approve their own access
Why It Matters
When too much authority is concentrated in one person or role:
• Fraud, abuse, and insider threats become easier to carry out
• Errors can go unnoticed due to lack of oversight
• Security audit trails are less meaningful
Documenting SoD requirements is step one toward creating a trustworthy access control structure.
How to Implement It
• Conduct a role-based access review to identify potential conflicts of interest
• Work with HR, IT, and leadership to define:
◦ Administrative roles
◦ Audit roles
◦ Operational roles (e.g., developers, analysts, approvers)
• Create a list of roles where one person should not hold multiple responsibilities
• Include SoD guidance in your access control policy or SSP
• Update your user provisioning process to enforce SoD when assigning roles
Evidence the Assessor Will Look For
• A documented list of roles that require separation (e.g., in policy, SSP, or internal control matrix)
• Examples of role conflicts and how they are mitigated (e.g., system administrator vs. security auditor)
• Access control system configurations showing mutually exclusive role assignments
• HR or IT checklists that include SoD considerations during onboarding
Common Gaps
• Lack of any formal definition of SoD roles
• Users assigned conflicting roles without oversight
• No documentation connecting role design to security or compliance strategy
How Cuick Trac Helps
Cuick Trac supports separation of duties by:
• Structuring access roles to reflect least privilege and SoD principles by default
• Preventing assignment of conflicting roles within the system
• Logging all role assignments and changes for traceability
• Offering guidance for SoD planning during access reviews and onboarding
With Cuick Trac, SoD is built into your access structure—so you don’t need to enforce it manually.
Final CTA
If one person can do everything, no one is truly accountable.
Schedule a Cuick Trac demo and start enforcing separation of duties where it matters most.