Establishing user trust in automated teller machine integrity

The authors show that integrity protection as a technical means towards automated teller machine (ATM) security is not enough to establish trust towards ATM users. The attacks, aiming at getting into possession of users´ bank card details and personal identification numbers (PINs) are manifold. The authors come up with a solution that allows users to establish trust into the ATM integrity protection being in place. The users´ mobile phones play a central role in the trust establishment. The authors also shift the PIN entry away from the possibly insecure ATM´s PIN pad towards the users´ mobile phones.