Patent ID: 8606702

Claim:
A method, comprising: receiving, by a server, a money transfer request identifying a financial account of a buyer, a financial account of a seller, and an amount to be transferred from the financial account of the buyer to the financial account of the seller, wherein the money transfer request is received from the buyer via a buyer wireless communications terminal; determining, by the server, in response to receiving the money transfer request from the buyer, a location of the buyer wireless communications terminal; determining, by the server, in response to receiving the money transfer request from the buyer, a location of a seller wireless communications terminal; calculating, by the server, a geographical proximity threshold value, based on: an ambient wireless interference condition; a type of the buyer wireless communications terminal; a type of the seller wireless communications terminal; a particular time of day at which the money transfer request is received from the buyer; a history of use of the buyer wireless seller communications terminal and the seller wireless communications terminal; whether the buyer is a merchant; and whether the seller is a merchant; determining whether the location of the buyer wireless communications terminal is within the geographical proximity threshold value of the location of the seller wireless communications terminal; and responsive to determining that the location of the buyer wireless communications terminal is within the geographical proximity threshold value of the location of the seller wireless communications terminal, authorizing, by the server, the money transfer request.