Certified Information Systems Auditor (CISA) — Question 186

Which of the following biometric authentication methods has the LOWEST false acceptance rate?

Answer options

• A. Fingerprint
• B. Voice
• C. Retina
• D. Face

Correct answer: C

Explanation

Retina scanning is known for its high accuracy and has the lowest false acceptance rate among biometric methods, making it more reliable for secure authentication. In contrast, methods like fingerprint and face recognition can have higher rates of false acceptance due to various factors such as quality of the input and environmental conditions, while voice recognition is even less reliable due to variations in speech.