data loss
nounverified· unreviewed·updated Oct 7, 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
Event100%manual reviewI-079.event_restored
Ddorianclast reviewed —
Event is a type again; Triggering Event is an Event that obliges a response (Dorian, 2026-10-07; cki DESIGN.md I-079)
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'