A method for facilitating the detection of misuse of an identity during an electronic transaction. The invention comprises at least five embodiments. In a first embodiment, the method comprises the step of: receiving a notification to authenticate the use of an identity at a first location, wherein the identity is associated with a first wireless terminal; determining an approximate location of the first wireless terminal based on cached position information, the approximate location of the first wireless terminal being a second location; determining whether the first and second locations match in geographical proximity; and generating an alert if the first and second locations do not match in geographical proximity. In a second embodiment, an approximate location of the first wireless terminal is determined based on cached position information stored on a GPS position database.