Primary definition
The exposure of proprietary, sensitive, or classified information through either data theft or data leakage. (SP 800-137) (NISTIR)
Also known asdata leakage · data theft · information loss · data breach · DL
2 sources cited4 related termsReviewed Aug 9, 2026
— The State and Local Election Cybersecurity PlaybookView source
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TSLECP
The exposure of proprietary, sensitive, or classified information through either data theft or data leakage. (SP 800-137) (NISTIR)
The State and Local Election Cybersecurity Playbook · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Data Loss. In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/data-loss
Sources
2 cited · last checked Aug 9, 2026
01
The State and Local Election Cybersecurity Playbook
The State and Local Election Cybersecurity Playbook
High consensus
02
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
Multi-source
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