Domain

Primary definition

An environment or context that includes a set of system resources and a set of system entities that have the right to access the resources as defined by a common security policy, security model, or security architecture. See security domain. Source: NIST SP 800-53 Rev 4

Also known assecurity domain · trust domain · protected domain
3 sources cited4 related termsReviewed Aug 9, 2026
Committee on National Security Systems Glossary CNSSI 4009-2015View source

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CNSSGC

An environment or context that includes a set of system resources and a set of system entities that have the right to access the resources as defined by a common security policy, security model, or security architecture. See security domain. Source: NIST SP 800-53 Rev 4

Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). Domain. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/domain

Sources

3 cited · last checked Aug 9, 2026

01

Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015

High consensus

View source

02

EAC Information Technology Terminology
EAC Information Technology Terminology

Multi-source

View source

03

The Cyber Glossary
The Cyber Glossary

Multi-source

View source

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