Abstract: A computer-implemented method of authenticating the identity of a user is provided, where the user is associated with a computer signature and is in possession of a mobile phone. The method involves obtaining a current geographical location of the mobile phone, determining if the computer signature is associated in a database with a stored geographical location of the phone, and, if the computer signature is associated in the database with a stored geographical location, comparing the stored geographical location to the current geographical location of the phone.

Abstract: The invention provides a method for verifying the identity of an internet user, or for detecting the misuse of an identity, during an on-line transaction. The method involves comparing the geographic location of the transaction to the geographic location of the user's cell phone or other mobile device, and taking a geographically close location relationship between the two as a positive indication of identity. A reasonable travel time between the two locations can be taken into account so as to reduce the incidence of false negatives, and to improve the reliability of positive identifications.

Abstract: A computer-implemented method of authenticating the identity of a user is provided, where the user is associated with a computer signature and is in possession of a mobile phone. The method involves obtaining a current geographical location of the mobile phone, determining if the computer signature is associated in a database with a stored geographical location of the phone, and, if the computer signature is associated in the database with a stored geographical location, comparing the stored geographical location to the current geographical location of the phone.

Abstract: A method for facilitating the detection of misuse of an identity during an electronic transaction 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 mobile phone; determining an approximate location of the mobile phone, and determining whether the first location and mobile phone locations match in geographical proximity. The approximate location of the mobile phone is determined based on cached position information. The invention provides a method for ensuring that the cached position information is up to date, by overwriting stale information with new position information derived by accessing a database that correlates Wi-Fi signals detected by the mobile phone with a geographic location.

Abstract: The invention provides a method for verifying the identity of an internet user, or for detecting the misuse of an identity, during an on-line transaction. The method involves comparing the geographic location of the transaction to the geographic location of the user's cell phone or other mobile device, and taking a geographically close location relationship between the two as a positive indication of identity. A reasonable travel time between the two locations can be taken into account so as to reduce the incidence of false negatives, and to improve the reliability of positive identifications.

Abstract: A method and system for authenticating an Internet user identity by cross-referencing and comparing at least two independent sources of information. A first geographical location of a computer signature of an internet user is identified, and the geographical location of a communication voice device of said internet user is identified to determine a second location. The first and second locations are compared for geographical proximity to confirm the identity of the internet user. Based upon geographical proximity of said locations, a score may be assigned to the internet user, and access to a website or authorization to carry out a transaction may be allowed or limited based upon said score. Alternatively, additional authentication information can be required or access can be terminated.

Abstract: The invention provides a method for verifying the identity of an internet user, or for detecting the misuse of an identity, during an on-line transaction. The method involves comparing the geographic location of the transaction to the geographic location of the user's cell phone or other mobile device, and taking a geographically close location relationship between the two as a positive indication of identity. Various additional factors are taken into account so as to reduce the incidence of false negatives, and to improve the reliability of positive identifications.