Patent ID: 8135624

Claim:
A method comprising: under control of one or more computer systems configured with executable instructions, detecting that a mobile device is present within a predetermined proximity of a merchant, the detecting performed by at least one of the mobile device, the merchant, or a network component; determining, by the one or more computer systems, if the merchant is included in a list of trusted merchants created by a user of the mobile device; responsive to determining that the merchant is included in the list of trusted merchants: logging in to the merchant by providing a unique user identifier to the merchant; sharing payment and preference information associated with the user of the mobile device with the merchant; and automatically and without receiving an indication generated by user interaction with the mobile device, completing a purchase between the merchant and the user using the payment and preference information at least partly in response to detecting that the mobile device is present within the predetermined proximity of the merchant, wherein the purchase comprises a purchase of a good or service indicated in the preference information as paid for with the payment information.