False Rejection Rate (FRR)

February 21, 2018

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The probability that a biometric system will fail to identify an applicant, or verify the legitimate claimed identity of an applicant.
SOURCE: SP 800-76

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.
SOURCE: CNSSI-4009