Mandatory Access Control
In computer security Mandatory Access Control (MAC) is a type of access control in which only the administrator manages the access controls. The administrator defines the usage and access policy, which cannot be modified or changed by users, and the policy will indicate who has access to which programs and files. MAC is most often used in systems where priority is placed on confidentiality.
Contrast with Discretionary Access Control (DAC) which is determined by the user with permission.
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