Many people use the same PIN-code for all their smartcards.
Eventually these codes are written down or they are observed by others when put in. Some users even disable the PIN-code because the entry procedure is considered to be too cumbersome. This is especially true in the mobile communications environment. In the ASPeCT authentication demonstration a compact voice template is stored on the smartcard along with a dual password system. Several voice templates can be stored on one smartcard if the owner permits access in case one wants the smartcard to be used by more individuals.