A false acceptance rate is
|“||[t]he probability that a biometric system will incorrectly identify an individual or will fail to reject an impostor. The rate given normally assumes passive impostor attempts.||”|
|“||[a] statistic used to measure biometric performance when operating in the verification task. The percentage of times a system produces a false accept, which occurs when an individual is incorrectly matched to another individual's existing biometric. Example: Frank claims to be John and the system verifies the claim.||”|
- ↑ NIST, FIPS 201.
- ↑ Biometrics Identity Management Agency, Biometrics Glossary, at 26 (Ver. 5) (Oct. 2010) (full-text).