Method and system to prevent fraudulent payment in credit/debit card transactions, and terminals therefor
View Patent ↗The present invention enables secure, valid card payments in credit transactions to be performed, preventing fraudulent card use even in cases of loss or theft of a card or of information theft. During a transaction authorization process using a transaction terminal disposed in a credit transaction member store and connected with a host computer, user validation or credit administration is carried out by using a portable communication terminal to input to the host computer identity information which has been previously registered in the portable communication terminal and/or location information for the portable communication terminal.
1. A transaction authorization computer for processing credit card transactions, comprising:
a memory which stores card information related to credit cards and identity-related information of portable communication terminals;
a receiver operable to receive card information transmitted from a transaction terminal in a credit card member store; and
a transaction processor which determines that credit card use is allowable when a current location of a portable communication terminal corresponding to the card information received by the receiver is within a predetermined range from a location of the transaction terminal.
2. The transaction authorization computer according to claim 1 , wherein the identity-related information is a telephone number of the portable communication terminal.
3. The transaction authorization computer according to claim 1 , wherein the receiver receives location information relating to a current location of the portable communication terminal.