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data loss

nounverified· unreviewed·updated Aug 30, 2026

The exposure of proprietary, sensitive, or classified information through either data theft or data leakage.

MWENISTIR 7298: Glossary of Key Information Security Terms, Revision 2

Senses

National Initiative for Cybersecurity Careers and Studies (NICCS) Cybersecurity Lexicon

The result of unintentionally or accidentally deleting data, forgetting where it is stored, or exposure to an unauthorized party.

Classifications

Entity Type

Event0%rule-basedmulti_axis_classifier_low_confidence.v1
?unassignedlast reviewed

Sensitivity

Regulated85%llm-generatedllm:claude-haiku-4-5
?unassignedlast reviewed

Information Class

Ip78%llm-generatedllm:claude-haiku-4-5
?unassignedlast reviewed

Variants

plural
data losses
possessive
data loss's
pluralpossessive
data losses'