Digital identity is the black hole of the internet. Our online lives simply aren't protected by a system without strong authentication. Killing the password is Mission One for security professionals because they're so readily stolen through phishing attacks and malware. Users, warned to make passwords complex and unique, have no hope of remembering them. And a password is simply one factor of secure authentication. Biometrics and data, when used in combination, can relieve password fatigue and, for the relying party, increase security substantially, bringing some light to that dark place on the internet.

We talk with MasterCard's biometrics and authentication leader, Bob Reany, about where biometrics work and the intersection of device-based tools with what the cloud provides through Big Data, particularly device profiling and behavioral analytics. Your fingerprint's not just for unlocking the phone anymore.