An automated banking machine can receive user card data from a cell phone. The phone stores the card data of several selectable cards, including electronic account number data. The machine generates and displays a random number correlated with a time period. A machine user manually inputs the displayed random number into their phone. A software application in the phone encrypts the selected card data along with the inputted random number data. The phone displays a bar code image containing the encrypted data. The banking machine includes a bar code reader which can read the displayed image. The machine causes the read data to be decrypted. The random number is used to verify the current transaction session. Thereafter, the user may provide other inputs, including PIN input. The process replaces physical insertion of a card yet allows secure input of the card data. Possible data interception from activities requiring card insertion are also reduced.