A method for conducting a secure transaction over a network includes the steps of receiving a price and a transaction identifier from a merchant, the transaction identifier identifying a purchase selection made by a user, receiving a user identifier from a user, receiving a financial institution selection from the user, initiating a communication session with the selected financial institution, receiving a financial-institution user-identifier from the user, communicating the financial-institution user-identifier to the selected financial institution, communicating to the selected financial institution a request to transfer funds, receiving the funds from the selected financial institution, and sending the funds to the merchant.