| 摘要 |
The present invention provides a blacklist updating technique capable of efficiently preventing unauthorized use. A terminal device is provided with: a list storage means for storing a blacklist including an invalidated identifier; a processing means for checking, upon input of an amount of money and an identifier, whether the inputted identifier is included in the blacklist inside the list storage means and, if not included, executing a prescribed process using the amount of money and finding a cumulative value by accumulating prescribed values; and a list updating means for updating, when the cumulative value exceeds a prescribed threshold, the blacklist inside the list storage means by receiving update data from a server device. |
