It's not easy, but it can be done. At Barcelona's Mobile World Congress, WSJ's Archibald Preuschat shows the security pitfalls of fingerprint security, and what companies are doing about it.

Jack Newton, studying military and protective services at the college, said the prince helped them by dusting aluminium ...

The Prince of Wales chatted to students at a fake crime scene The Prince of Wales ... powder onto the side of the car to reveal a fingerprint of a suspect. "It showed that he was really interested ...

such as the ridges and valleys in a fingerprint, the scanners offer good protection against spoofing, where a fake fingerprint is used instead of an actual one, thus the increasing technological ...