To reduce the chance of fraudulent vendor payments, a company assigns one employee to create each payment and a different employee to authorize it. Which logical access control principle is being enforced in this situation?
Mandatory access control
Principle of least privilege
Defense in depth
Segregation of duties
Dividing the initiation and authorization of payments ensures that no single individual has complete control over the process. This implements segregation of duties, a logical control that separates critical tasks among multiple people to deter fraud and error. Least privilege limits the scope of permissions given to a user but does not require multiple people. Mandatory access control is a system-enforced classification scheme, and defense in depth is a layered security strategy rather than a task-separation principle.
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