… Humans are notoriously bad at creating secure passwords. … we’ve fixed the problem, at least somewhat, by introducing a slew of new devices that rely on biometric authentication, whether in the form of fingerprints, voice recognition, or facial scanning. … Researchers at New York University [Tandon School of Engineering] and Michigan State University, however, have their doubts about whether biometrics alone are enough. … At issue is the way in which most fingerprint sensors work. Previous research by NYU professor Nasir Memon detailed a fatal flaw in some system. Rather than using a full fingerprint, most relied on partial fingerprints to confirm identity.