anomalous activity

nounverified·updated May 9, 2026

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Any actions that are outside of what is expected, as measured against what "normally" should be happening, occur.

MWENIST Cybersecurity Framework

Senses

1 more sense beyond the canonical

Federal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary

Activity that deviates from normal. The result of the process of comparing definitions of what activity is considered normal against observed events to identify significant deviations.

Classifications

per-axis with provenance

Entity Type

Event92%llm-generatedllm:claude-haiku-4-5

?unassignedlast reviewed —

Sensitivity

unclassified

Information Class

unclassified

Variants

4 surface forms

synonym: anomalous event
plural: anomalous activities
possessive: anomalous activity's
pluralpossessive: anomalous activities'

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