D. Allows for object security based on sensitivity represented by a label
Mandatory Access Control (MAC) is a security model that enforces access controls based on security labels assigned to objects (such as files, documents, or resources) and the sensitivity levels of users. Users and objects are assigned security labels, and access to objects is determined by comparing the labels and ensuring that users have the necessary permissions based on the security policy. MAC is commonly used in environments where strict access control and data classification are essential, such as government and military settings.
MAC restricts access to data based on varying degrees of security requirements for the information contained in the objects. A policy-based means of restricting access to objects based on the sensitivity (as represented by a label) of the information contained in the objects and the formal authorization (access control privileges) of subjects to access information of such sensitivity. This means of restricting access to objects based on the sensitivity of the information contained in the objects and the formal authorization (i. e., clearance, formal access approvals, and need to know) of subjects to access information of such sensitivity.
Mandatory access control (MAC)
Administrators assign security classifications, or labels, to each user and each resource. A user can only access a given resource if their labels are compatible. MAC is challenging to implement correctly but allows very high security. It was developed for military use but is common in other high-security environments
A means of restricting access to system resources based on the sensitivity (as represented by a label) of the information contained in the system resource and the formal authorization (i.e., clearance) of users to access information of such sensitivity.
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