Primary definition
Concept of processing information with different classifications and categories that simultaneously permits access by users with different security clearances and denies access to users who lack authorization. (CNSSI-4009) (NISTIR)
Also known asMLS · Multi-Level Security · Multiple Level Security
1 sources cited4 related termsReviewed Aug 10, 2026
— The Cyber GlossaryView source
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TCG
Concept of processing information with different classifications and categories that simultaneously permits access by users with different security clearances and denies access to users who lack authorization. (CNSSI-4009) (NISTIR)
The Cyber Glossary · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Multilevel Security (mls). In Election Security Glossary. Retrieved August 15, 2026, from https://electionsecurityglossary.com/glossary/multilevel-security-mls
Sources
1 cited · last checked Aug 10, 2026
01
The Cyber Glossary
The Cyber Glossary
Single-source
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