Emission Security (emsec)

Primary definition

The component of communications security that results from all measures taken to deny unauthorized persons information of value that might be derived from intercept and analysis of compromising emanations from cryptoequipment and information systems. See TEMPEST. Source: JP 6-0

Also known asTEMPEST · compromising emanations security · emissions security
1 sources cited4 related termsReviewed Aug 9, 2026
Committee on National Security Systems Glossary CNSSI 4009-2015View source

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CNSSGC

The component of communications security that results from all measures taken to deny unauthorized persons information of value that might be derived from intercept and analysis of compromising emanations from cryptoequipment and information systems. See TEMPEST. Source: JP 6-0

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

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). Emission Security (emsec). In Election Security Glossary. Retrieved August 23, 2026, from https://electionsecurityglossary.com/glossary/emission-security-emsec

Sources

1 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

Single-source

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