Credit card security code: credit card security code, credit card security code, is the security code of credit card when conducting network or telephone transactions. Usually three or four digits printed on a credit card. Different types of cards will have different printing positions. It is usually used to prove that the payer is the real cardholder who owns the credit card at the time of transaction, thus preventing credit card fraud.

The credit card security code is a set of 3 or 4 digits on the credit card. 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.

The application conditions for extended data savings card shall be handled at any business outlet of the bank with my valid identity certificate. You must open a current account first. The account balance shall not be less than 10 yuan. Unstamped withdrawal account. Non-loss-reporting account, frozen account and normal account status.

The main function of a savings card is to save deposits. Cardholders can read and manually enter passwords through the electronic payment network established by the bank and the magnetic stripe of the card, so as to realize the functions of credit card consumption, ATM withdrawal, transfer and various payments. The expenses incurred through the card are equal to the decrease in the balance of the savings account.

The handling fee of savings card mainly includes annual fee, small account management fee, loss reporting fee, new card worker, cash withdrawal fee including local interbank, remote bank, overseas ATM, Hong Kong and Macao, transfer fee including remote bank, remote bank, local interbank, wire transfer overseas and online banking transfer fee including remote bank, remote bank, local interbank and overseas remittance.

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