| 摘要 |
PROBLEM TO BE SOLVED: To discriminate genuineness of a user with higher assurance by using a method other than the conventional password numbers or changing the using method of password numbers about a user genuineness discrimination method (personal authentication method) that uses a computer when a cash card, the electronic commerce, the Internet, a burglar preventing system, etc., are used. SOLUTION: In this user genuineness discrimination method, the preliminarily registered cellular phone number of a user is retrieved from a storage by means of the user identification information (customer number, user name, etc.), when this user identification information is inputted from an information terminal (external device). Then the user's cellular phone is called via a communication means and the user's identity is recognized when a specific input operation is carried out via the cellular phone. |
