Ultrasound Fingerprint Auth Avoids Digital Storage

A research team led by Professor Junsuk Rho at POSTECH developed an ultrasound system that authenticates fingerprints via physical computation without storing digital data. Published in Nature Sensors in 2026, the study achieved 97.92% accuracy across 192 samples and up to 99.75% for a single user, aiming to reduce biometric leakage risks in high-security fields like finance and defense.