Primary definition
Action, procedure, modification, or device that reduces the level of, or inhibits the generation of, compromising emanations in an information system.
Also known ascompromising emanations suppression · emanation suppression · suppression device · suppression technique · suppression control · emissions security (EMSEC) measure · TEMPEST countermeasure · TEMPEST suppression · red/black separation · suppression mechanism
2 sources cited4 related termsReviewed Aug 10, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
Action, procedure, modification, or device that reduces the level of, or inhibits the generation of, compromising emanations in an information system.
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Suppression Measure. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/suppression-measure
Sources
2 cited · last checked Aug 10, 2026
01
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
High consensus
02
The Cyber Glossary
The Cyber Glossary
Multi-source
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