AUTHENTICATION INFORMATION UPDATE SYSTEM, PROGRAM, AND TERMINAL

摘要

An authentication information update system for updating authentication information for authenticating a person. Specifying means specifies a part to be extracted to update authentication information from terminal use information relevant to the use of a terminal. When the terminal is being used, update means updates the authentication information according to the specified part of the terminal use information For example, When four characters from the right of the right-aligned text are extracted from each of telephone number, the calling function, and the number digit information among the use information on the terminal (2), the four digits from the right of the right-aligned telephone number of the called terminal each time the user makes a call by using the portable terminal (2) are automatically updated as a new password of the cash card of the deposit account in a financial system (3). The terminal use information includes a telephone call, a telephone call arrival, a mail reception, and a mail sending.