Separation of duties is a security management control that divides a critical or sensitive task into two or more parts, and assigns them to different individuals or groups. This reduces the risk of fraud, error, or abuse of authority, as no single person or group can perform the entire task without the cooperation or oversight of others. Separation of duties is most often broken by collusion, which is a secret or illegal agreement between two or more parties to bypass the control and achieve a common goal12. References: 1: CISSP All-in-One Exam Guide, Eighth Edition, Chapter 1, page 352: CISSP For Dummies, 7th Edition, Chapter 1, page 23.
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