False Rejection Rate

nounverified·updated May 9, 2026

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The measure of the likelihood that the biometric security system will incorrectly reject an access attempt by an authorized user. A system’s false rejection rate typically is stated as the ratio of the number of false rejections divided by the number of identification attempts.

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

Senses

1 more sense beyond the canonical

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

The probability that a biometric system will fail to identify an applicant, or verify the legitimate claimed identity of an applicant.

Classifications

per-axis with provenance

Entity Type

Metric92%llm-generatedllm:claude-haiku-4-5

?unassignedlast reviewed —

Sensitivity

unclassified

Information Class

unclassified

Variants

4 surface forms

acronym: FRR
plural: False Rejection Rates
possessive: False Rejection Rate's
pluralpossessive: False Rejection Rates'

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