A security engineer must select a biometric system for a restricted research vault. Management insists on the lowest possible false-acceptance rate and wants a trait that is located inside the body so it cannot be duplicated with a photograph, silicone mold, or stolen object. Which physical access control BEST satisfies these requirements?
Retina scanners map the unique pattern of blood vessels on the back of each person's eye. Because this pattern is internal tissue, it cannot be captured with a simple photo or duplicate mold, making spoofing extremely difficult. This intrinsic characteristic gives retina scanning one of the lowest false-acceptance rates among common biometric methods. Fingerprints, palm prints, and facial features are external and can be lifted or photographed, so they are easier to counterfeit and generally provide higher false-acceptance rates than retinal recognition.
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What is the false-acceptance rate (FAR) in biometrics?
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How do retina scanners work to enhance security?
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What makes retinal scanning more secure than fingerprint or facial recognition?