Discretionary Access Control (DAC)

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Discretionary Access Control (DAC):


Discretionary Access Control (DAC) allows the owner of a system or device to manage access control at his or her own discretion. The holder programs access authorization at his or her personal discretion. With Mandatory Access Control (MAC) and Role-Based Access Control (RBAC), access to the information is in compliance with an established set of rules. This is the common set-up for access control and includes setting permissions on files, folders, and shared information. Access control is implemented in every mode or forum that information is found in your organization.

This consists of electronic data as well as hard-copy files, photographs, displays, and communication packets. With DAC, an access control list (ACL) is the file that lists the users who have authorized access to resources and the type of access they are permitted. In the case of discretionary authentication, an ACL can become extensive if individual users are added which may complicate system management.

There several risks associated with DAC:

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