Credit card belongs to organization symbol: it identifies the organization to which the credit card applies, and can only be used for credit card consumption on P0S machines supporting the organization or for cash withdrawal or transfer consumption on ATMs supporting the organization. Almost all domestic credit cards support UnionPay.
Credit card expiration date: the current credit card expiration date consists of a two-digit month and a two-digit year. For example, "118" means 20 1 1 due. After the expiration of the validity period marked on the card surface, the old card must be replaced with a new card, otherwise the card will not be able to continue to be used.
Credit card anti-counterfeiting mark: a mark used to simply identify the authenticity of a credit card. It is usually produced and distributed by credit card organizations, and some credit cards will also paste this logo on the front of the credit card.
CCV2 code of credit card: a 3-digit number generated by the coding rules and encryption algorithm of the issuing bank, which is equivalent to the second password of the credit card. In the payment process, if the merchant provides the bank with the credit card number and CCV2 code, the bank will obtain the authorization of the cardholder to the merchant by default, thus allowing the transaction. Therefore, the security of CCV2 code must be ensured to prevent the credit card from being stolen.
Credit card signature column: used for the cardholder's handwritten signature. If the transaction password is not set on the credit card, it must be clearly signed before use (the signature must be consistent with the name printed on the front of the card).
The appearance of credit cards has changed our consumption pattern. With the increasing and frequent use of credit cards, the problem of information leakage has emerged. So, what information is there on the credit card that we can't disclose?
Then the most important thing is-SMS dynamic verification code! SMS dynamic verification code is regarded as a transaction password, which is a weapon for payment security verification. If others know, the consequences will be unimaginable.
Once the card is lost, report the loss immediately; If information is found to be leaked, you should immediately call the customer service hotline, don't let the credit card leave the line of sight, and try to block the operation gestures when entering the password to prevent criminals from peeping.