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intrusion

nounverified·updated May 9, 2026

Unauthorized act of bypassing the security mechanisms of a system.

Framework senses

National Initiative for Cybersecurity Careers and Studies (NICCS) Cybersecurity Lexicon1 senseview framework →
§1
An unauthorized act of bypassing the security mechanisms of a network or information system.
NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
Unauthorized act of bypassing the security mechanisms of a system.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
Unauthorized act of bypassing the security mechanisms of a system.
Wordset Dictionary5 sensesview framework →
§1
entrance by force or without permission or welcome
§2
entry to another's property without right or permission
§3
any entry into an area not previously occupied
§4
rock produced by an intrusive process
§5
the forcing of molten rock into fissures or between strata of an earlier rock formation