SICHERHEITSMETHODE UND SYSTEM MIT ÜBERKREUZPRÜFUNG BASIEREND AUF GEOGRAPHISCHEN ORTSDATEN

摘要

A security system with cross-checking for authenticating users on data communications networks comprises means (210) for receiving from a service provider (20) identification data of a user and of a point of access (25) to a service; means (205) for identifying the geographic location of the access point and a of mobile telephone number associated with the user; means (212) for sending the mobile telephone number to a mobile telephone carrier (30); means (213) for receiving from the telephone carrier (30) data that identify the geographic location of a mobile telephone that corresponds to the sent mobile telephone number (40); computing means (206) for generating a result of a comparison between the geographic location of the service access point (25) and the geographic location of the mobile telephone (40) and means (211) for sending the result or data as a function of the result to the service provider (20) or to the mobile telephone number.