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False Negative

nounid 4889·updated Aug 28, 2026
verified

1. An instance in which a security tool intended to detect a particular threat fails to do so. 2. Incorrectly classifying malicious activity as benign.

MWE

Attested in

No recorded attestations. They are written when an MWE tagging stage is completed, stamped with the pack version and the document’s digest.

Classifications

Entity Type

Metric82%llm-generatedllm:claude-haiku-4-5

Sensitivity

unclassified

Information Class

unclassified

Variants

synonym
Type II error (in statistics)
plural
False Negatives
possessive
False Negative's
pluralpossessive
False Negatives'

Framework definitions

False Negative1 senseview framework →
§1
1. An instance in which a security tool intended to detect a particular threat fails to do so. 2. Incorrectly classifying malicious activity as benign.
Classification: True vs. False and Positive vs. Negative1 senseview framework →
§1
an outcome where the model incorrectly predicts the negative class.
National Security Commission on Artificial Intelligence: The Final Report1 senseview framework →
§1
An example in which the predictive model mistakenly classifies an item as in the negative class.
Trustworthy Machine Learning1 senseview framework →
§1
A false negative is denying an applicant who should be approved
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
1. An instance in which a security tool intended to detect a particular threat fails to do so. 2. Incorrectly classifying malicious activity as benign.
DR-088 backfill from the noun definition column

Outgoing relationships

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Incoming relationships

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No other term currently asserts a relationship to this one.