CW2 is the four digits printed at the place where the card is signed (these four digits are the last four digits of your card number), and then there are three digits, which is CW2. You can see it directly on the bank card.

Extended data

Credit cards CVV2, CVC2, CVN2 and CSC2 (different credit card organizations have different names) are verification codes, which are used for indirect credit card consumption. Generally, it refers to the last 3 digits of the 7 digits in the signature column on the back of your credit card.

Tips: Some savings cards have the last three security check codes on the white signature strip on the back, such as Kirin theme debit card and Forbidden City debit card.