The first step is to define the conflicting duties that matter most in the organization, then map those conflicts to roles, workflows, and approval paths. From there, teams can set clear ownership, identify exceptions, and build regular audits into the process. Without that foundation, Segregation of Duties becomes inconsistent and difficult to enforce at scale.
Start with the duties that can actually conflict
segregation of duties improves fastest when organisations stop treating it as a blanket policy and instead identify the handful of duty combinations that create real abuse potential, for example request, approve, create, and release, or admin and audit. The practical first move is to define those conflict pairs clearly, then translate them into the workflows where they occur.
That mapping step matters because SoD failures are usually process failures, not just policy failures. If the organisation cannot point to the exact role, system step, or approval path where a conflict exists, it cannot reliably prevent it, detect it, or explain exceptions when they occur.
- Document the highest-risk conflicts first, not every theoretical combination.
- Map each conflict to the business process, system control, and approval path where it shows up.
- Separate normal operational exceptions from true control breaks so reviewers can act consistently.
Well-known control models such as CIS Controls v8 and the NIST SP 800-53 Rev 5 Security and Privacy Controls both reinforce that access control only works when roles, approvals, and auditability are defined with enough precision to enforce them.
Why the first mapping step usually fails in practice
The common mistake is starting with tooling or access reviews before the organisation has agreed what a conflicting duty is. That creates shallow rules that look compliant but miss the real operational risk, especially where the same person can influence multiple stages of a transaction, deployment, or change.
Another failure mode is over-expanding the control too early. If the organisation tries to model every edge case before deciding which conflicts matter most, SoD turns into an unwieldy catalogue that teams cannot maintain. The better approach is to begin with the material conflicts that create the greatest fraud, error, or override risk, then refine the control set over time.
That is also where identity and access governance becomes material, because roles and approval paths only work when ownership, entitlements, and review cadence are explicit. NHIMG’s Ultimate Guide to Non-Human Identities is useful here as a reference point for governance, lifecycle, and visibility patterns that commonly sit underneath access control design.
Where organisations use shared service access, automation, or integration accounts inside those workflows, the conflict map should also account for how credentials and permissions are actually exercised. That is why the same control thinking that supports SoD often needs to be paired with careful account management and audit logging in operational environments.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
CIS Controls v8, NIST CSF 2.0 and NIST SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| CIS Controls v8 | 6 — Access Control Management | SoD depends on controlled roles, approvals, and account separation. |
| Recommendation — Define conflicting access paths and enforce them through account and role management. | ||
| NIST CSF 2.0 | PR.AC — Access Control | SoD is an access-control design problem that must be mapped to roles and approvals. |
| Recommendation — Map duties to access rules and approval boundaries that prevent conflicting actions. | ||
| NIST SP 800-63 | IAL — Identity Assurance Level | SoD governance relies on knowing which identity can perform which sensitive actions. |
| Recommendation — Bind sensitive workflow permissions to verified identity assurance and role ownership. | ||
Practitioner Guidance
What to prioritise: Start with the two or three duty conflicts that could cause the most damage if one person controlled both sides of the control. If those are not agreed, every downstream review becomes subjective and exception handling will drift.
What to verify: Before trusting the control, verify that each conflict pair is mapped to a named role, a specific workflow step, and a clear approval path. If any one of those three is missing, the SoD control is usually incomplete even if the policy sounds strong.
Common mistake: Teams often build SoD around job titles rather than actual system actions. That is usually too coarse, because the risky behaviour sits in the workflow, not the org chart.
Practitioner takeaway: The first real SoD improvement is not enforcement, it is precision, define the conflicts that matter, then make the workflow reflect them in a way that can be reviewed, audited, and defended.
Related resources from NHI Mgmt Group
- How should organisations improve SAP access governance when native segregation-of-duties controls only show technical violations?
- What should organisations do first when they want to automate incident response with privileged access controls?
- How should organisations implement segregation of duties across access, change, and data management workflows?
- What are the main trade-offs when implementing segregation of duties in fast-moving organisations?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 20, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
