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    Glossary
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penetration

Abbreviations / Acronyms / Synonyms:

intrusion

Definitions:

  A security event, or a combination of multiple security events, that constitutes a security incident in which an intruder gains, or attempts to gain, access to a system or system resource without having authorization to do so.
Sources:
CNSSI 4009-2022 under intrusion from IETF RFC 4949 Ver 2

  Unauthorized access to a Federal Government or critical infrastructure network, information system, or application.
Sources:
CNSSI 4009-2022 under intrusion from NSPD-54/HSPD-23