Merchants and card issuers need to verify that your credit card is open and valid when customers use it. This verification is achieved by swiping the card on the POS and then authorizing it in real time. It is easier for credit card fraudsters to obtain the card number than the validity period, and cards without the validity period will be refused to spend.

2. One-step authentication

When making credit card consumption online or by telephone, the validity period is another verification means besides the card number, name and security code (three or four digits behind the credit card) (referring to foreign countries, most of them need passwords in China). The more verification information, the less likely it is for others to record card information for consumption.

3. Adjust the credit line

Generally, when the credit card is about to expire, the issuing bank will re-evaluate the customer's credit status and adjust the credit limit of the new credit card according to the customer's past consumption and repayment.

4. Replace worn old cards

Plastic credit cards will gradually wear out in the process of use, and the magnetic stripe may be invalid if used for a long time. The set validity period allows the issuing bank to actively issue new credit cards to customers every few years without the need for customers to replace them themselves.

Other reasons include: reminding customers that there are available credit cards to stimulate consumption; Provide a trendy, cool and beautiful new card and so on. ...