This system uses an infrared beam to penetrate the users hand as it is held over the sensor; the veins within the palm of the user are returned as black lines. Palm vein authentication has a high level of authentication accuracy due to the uniqueness and complexity of vein patterns of the palm. Because the palm vein patterns are internal to the body, this is a difficult method to forge. Also, the system is contactless and hygienic for use in public areas.