AuthenTec anti-spoofing technology then compares the data with expected properties to ensure fingerprint authentication.

FORBES: Securing The Future of Apple's iPhones and iPads

Iris scans and fingerprint readers, however, are not the only authentication options in evidence at Comdex.

CNN: Comdex: With biometrics, you're the password

To address these needs, this product includes a fingerprint reader and smart card reader for effective two-factor authentication.

ENGADGET: blogger-avatar

Sidestepping lockscreen codes and fingerprint scanners -- and without any new hardware demands -- KDDI has unveiled a new palm authentication app that takes advantage of the high-resolution camera on its Android smartphones.

ENGADGET: KDDI's smartphone palm authentication app unveiled at CEATEC 2012 (hands-on)