US Patent 11556932 System for user authentication

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 cell phone. The method involves obtaining a current geographical location of the cell 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.