Discretionary Access Control

Primary definition

The basis of this kind of security is that an individual user, or program operating on the user's behalf, is allowed to specify explicitly the types of access other users (or programs executing on their behalf) may have to information under the user's control. (FIPS 191) (NISTIR) A means of restricting access to objects (e.g., files, data entities) based on the identity and need-to-know of subjects (e.g., users, processes) and/or groups to which the object belongs. The controls are discretionary in the sense that a subject with a certain access permission is capable of passing that permission (perhaps indirectly) on to any other subject (unless restrained by mandatory access control). (CNSSI-4009) (NISTIR)

Also known asDAC · Discretionary Access Control System · Discretionary Security
1 sources cited4 related termsReviewed Aug 10, 2026
The Cyber GlossaryView source

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The basis of this kind of security is that an individual user, or program operating on the user's behalf, is allowed to specify explicitly the types of access other users (or programs executing on their behalf) may have to information under the user's control. (FIPS 191) (NISTIR) A means of restricting access to objects (e.g., files, data entities) based on the identity and need-to-know of subjects (e.g., users, processes) and/or groups to which the object belongs. The controls are discretionary in the sense that a subject with a certain access permission is capable of passing that permission (perhaps indirectly) on to any other subject (unless restrained by mandatory access control). (CNSSI-4009) (NISTIR)

The Cyber Glossary · 2024

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). Discretionary Access Control. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/discretionary-access-control

Sources

1 cited · last checked Aug 10, 2026

01

The Cyber Glossary
The Cyber Glossary

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