Primary definition
Highest and lowest security levels that are permitted in or on an information system, system component, subsystem, or network. See system high and system low.
Also known assecurity boundary · security spectrum · sec range
2 sources cited3 related termsReviewed Aug 10, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
Highest and lowest security levels that are permitted in or on an information system, system component, subsystem, or network. See system high and system low.
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Security Range. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/security-range
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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