A user verification system employs forward and rearward facing imaging devices on a mobile communication device. An image is displayed on the display of a computing device from which a user wishes to access computer services. The user captures the displayed image with one of the imaging devices on the mobile communication device and simultaneously takes a picture of the user. An authentication system compares the displayed image captured by the mobile communication device with a stored image to determine a match. A successful match results in a displayed match indicator. In addition, the captured facial image of the user is compared with a stored image of an authenticated user. A successful match between the captured facial image and the stored image results in the generation of a facial match indicator. Computer access is granted to an authenticated user only if both the captured display image and the captured facial image result in a match with the stored counterpart images.