There's nothing like a Black Hat Security Conference to leave you feeling exposed and vulnerable. Today's compromise? Fingerprint readers. Security researchers Tao Wei and Yulong Zhang have exposed some pretty significant flaws in the Android fingerprint framework. The duo outlined a couple of different attacks -- including malware that can bypass fingerprint-authenticated payment systems and various backdoor attacks -- but the biggest offender was a "fingerprint sensor spying attack" that could remotely lift prints from affected phones. Researchers found the attack viable on both the HTC One Max and the Samsung Galaxy S5, but not on iPhone or other Touch ID devices.