METHOD FOR PREVENTING UNAUTHORIZED USE OF CREDIT CARDS IN REMOTE PAYMENTS AND AN OPTIONAL SUPPLEMENTAL-CODE CARD FOR USE THEREIN

摘要

Method for preventing unauthorized use of credit cards in remote payments comprising the steps of: (a) providing through a credit card company a plurality of secret code lists for use with a plurality of credit cards, wherein each list is provided to the use of a single owner of at least one credit card, and each code is for only a single use, and wherein a copy of the code content of each list is registered in an office of the credit card company in the name of its authorized user; (b) transmitting one code from said list to a creditor by the credit card owner for every separate remote payment, together with any required conventional data of the credit card, and said single use code is marked by the owner in order to prevent a double use with the same code; (c) verifying the said single code together with the other conventional cedit card data through a dialogue between the creditor and the credit card company, and accepting or rejecting the payment, according to the verification resu (d) invalidating the single code used for an accepted payment, from the registered code list copy in the credit company office.