False acceptance rate

Term
False acceptance rate
Exam
CISA
Definition

The rate at which a biometric system wrongly accepts an unauthorized person.

Explained

The false acceptance rate measures how often a biometric system admits someone it should reject. In high-security areas it is the most important error to minimize.

In practice

A fingerprint reader occasionally admits the wrong person.

Often confused with
False rejection rate
Exam angle

The most important error rate for high-security areas.

Related

Crossover error rate ยท Multi-factor authentication (MFA)

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