Which is the act of impersonating someone to bypass a biometric-based passwordless system?

• A. Big Data
• B. Blockchain
• C. Secure Function Evaluation (SFE)
• D. Biometric Impersonation

Answer: (D)

In a passwordless biometric system, authentication relies on a person’s unique biological traits. Impersonation is when someone tries to pass as another person to fool the system and gain access by presenting a biometric signal that isn’t theirs. This is exactly what biometric impersonation describes—attempting to bypass the check by mimicking someone else’s biometrics, such as using a fake fingerprint, a silicone mask for facial recognition, or a spoofed voice.

The other options don’t fit this scenario: Big Data refers to handling and analyzing large data sets, Blockchain is a distributed ledger technology, and Secure Function Evaluation is a cryptographic method for computing on encrypted data. None describe the act of pretending to be someone else to defeat a biometric passwordless system.