A method and system for enhancing security using location-based wireless authentication for a mobile device, the method comprising the steps of: sending from the mobile device to a base station a message, the message having a unique identifier associated with the mobile device; appending, at the base station, a location identifier to said message; sending the message to a recipient; and authenticating the message at the recipient, said authenticating step confirming that the location identifier appended at the base station corresponds with an expected location for the message.