Primary definition
Information systems security mode of operation wherein all personnel have the clearance, but not necessarily formal access approval and need-to-know, for all information handled by an information system. (CNSSI-4009) (NISTIR)
Also known asPSM · Partitioned Mode · Partitioned Security Mode of Operation
1 sources cited3 related termsReviewed Aug 10, 2026
— The Cyber GlossaryView source
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TCG
Information systems security mode of operation wherein all personnel have the clearance, but not necessarily formal access approval and need-to-know, for all information handled by an information system. (CNSSI-4009) (NISTIR)
The Cyber Glossary · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Partitioned Security Mode. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/partitioned-security-mode
Sources
1 cited · last checked Aug 10, 2026
01
The Cyber Glossary
The Cyber Glossary
Single-source
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