Patent ID: 7983987

Claim:
A method for conducting a payment transaction using payment account identification data associated with a payment account, the method comprising: a. receiving identification data at a merchant processor from a purchaser processor; b. transmitting said identification data from said merchant processor to a registration database processor; and c. receiving at said merchant processor data from said registration database processor, said data including the address of a credential collection page, said address accessible via a standard internet browser; d. transmitting said address from said merchant processor to said purchaser processor; e. receiving at said merchant processor from said purchaser processor first authentication data generated by an authentication processor in response to said purchaser processor accessing said address; and f. transmitting a first authorization request message, said first authorization request message comprising second authentication data based on said first authentication data and a transaction amount from said merchant processor, to at least one of an acquirer processor and a payment organization processor over a payment network.