I've heard you and others say using your fingerprint to unlock your phone or apps isn't the best idea. Why? Is it not as safe as they tell us? I'm curious as to why people think this. Thanks Hi ...

The aperture has a prism for its portable platen-free fingerprint biometric scanner so that it can be converted to collect ...

Spokeo reports on smart home facial recognition technology, enhancing convenience but raising privacy concerns; adoption ...

Kai Kloepfer, 19, has developed a prototype gun that unlocks with a fingerprint sensor, like a smartphone. Could it save lives? WSJ's Geoffrey A. Fowler takes it for a first test shot. Photo/Video: Ja ...