Credit card security code is the security code of credit card for online or telephone transactions. Generally, it is a 3-digit or 4-digit number printed on a credit card, and the printing position of different types of cards will be different. It is usually used to prove that the payer has a credit card at the time of transaction, thus preventing credit card fraud.
Its generation method is that the bank extracts the account number, validity period and service code of the card, arranges them and then calculates them through a series of complicated algorithms. After this set of numbers is generated, only the issuing bank and the holder of the bank card know what this number is.
Extended data
The credit card installment payment of CITIC Bank is as follows:
1. Shopping center installment payment
When cardholders go to shopping places, such as "shopping malls", they can shop by stages. When you check out, you need to pay by installment with a credit card supported by the mall. Then the cashier will swipe the card on the special POS machine according to the number of periods required by the cardholder (such as 3 periods, 6 periods, 12 periods, etc.). There are also a few shopping malls that support the 24 th issue).
2. mail order installment payment
The cardholder receives the installment mail order catalog manual sent by the issuing bank (or the online installment mall of the bank) and selects from the limited commodities. Then the bank orders in installments through online installment mall, telephone or fax installment application form, etc.
3. Bill installment payment
All issuers can basically support this staging method, and the application is simple. Users only need to apply to the issuing bank for installment by phone after spending their credit cards and before sending monthly bills. However, it should be noted that banks will stipulate some special circumstances, such as speculative credit cards can not be successful in installments.
Baidu Encyclopedia-China CITIC Bank Credit Card
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