Originally Posted by
CXYYZ
I recently got a PayPass Mastercard. In Canada, Citibank offers PayPass as part of its Petro-Points Mastercard product that also features savings of $0.02/litre on gas at PetroCanada outlets.
It seems convenient, though given the amount of fraud at gas station card readers already, I do have my reservations about its security.
Generally speaking the RF based cards have much higher security than a traditional card. The RF based card won't transmit the card number unless a two way, encrypted security challenge has passed on both ends. This makes it hard to create bogus cards, or piggyback a mag reader to terminal/atm/etc.
The only RF system I'm aware of being hacked was an early Exxon ExpressPass system, which was since replaced.