Primary definition
The process of monitoring the events occurring in a computer system or network and analyzing them for signs of possible incidents. Source: NIST SP 800-94
Also known asID · IDS · intrusion detection system · network intrusion detection · host intrusion detection · HIDS · NIDS
3 sources cited4 related termsReviewed Aug 9, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
The process of monitoring the events occurring in a computer system or network and analyzing them for signs of possible incidents. Source: NIST SP 800-94
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Intrusion Detection. In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/intrusion-detection
Sources
3 cited · last checked Aug 9, 2026
01
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
High consensus
02
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
Multi-source
03
NICCS Glossary
NICCS Glossary
Multi-source
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