The German hacking group Chaos Computer Club says its biometrics hacking team has discovered how to bypass the biometric security of Apple's TouchID fingerprint authentication through a simple method based on a rubbery duplicate of a fingerprint the group devised.The Chaos Computer Club demonstrated its method of tricking the Apple Touch ID sensor in a video it posted online showing how the Apple iPhone was easily fooled by a gummy copy of an individual's fingerprint previously used to access the smartphone. The Chaos Computer Club said it made this copy of a registered fingerprint through a simple process involving creating a gummy image of the fingerprint out of latex and glue.The gummy fingerprint trick is one that is well-known in biometrics and has been used before to raise questions about how uncrackable some fingerprint-based biometrics might be.[MORE: