Annex A 5.3
Segregation of duties
Conflicting duties are separated so no single person can both perform and conceal a damaging action.
What an assessor looks for
Show which combinations of duties you consider conflicting and how the separation is enforced. Small organisations are expected to document compensating controls rather than claim separation that headcount does not permit.
Where it usually fails
Segregation is asserted but the same administrator can grant access, use it, and edit the log of having done so.
Classification
- Theme
- A.5 Organisational
- Control type
- Preventive
- Security properties
- Confidentiality, Integrity
- Cybersecurity concepts
- Protect
- ISO 27001:2013 equivalent
- 6.1.2
Control number and title are identifiers used as references. The classification above is our own analysis, aligned to the shape of the ISO 27002 attribute model rather than reproduced from it, and no text from the standard appears on this page. Last reviewed 2026-08-03.
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