| 摘要 |
An object of the present invention is to provide a customer collation system, a card, a mobile communication terminal and a shop system in order to prevent a card such as a credit card and a cash card or the like from being "fraudulently used" to promote safety of a credit account and a prepaid account. A plurality of card readers (T1 to Tn) for reading the data of a card (CD) are arranged in a shop and these card readers (T1 to Tn) are connected to a customer collation center (CS). The customer collation center (CS) is mutually connected to card issuers (C1 to CN) and the data read by the card readers (T1 to Tn) is collated with the data of the usage year, month, data, hour, minute of the card (CD) of the recent ten times of an issuer of the card (CD) (for example, C1). Hereby, it is possible to prevent "the fraudulent usage of a card". <IMAGE> |
