You can see it directly in the column of stripe signature, with a total of seven digits. The first four digits are the last four digits of your card number, and the last three digits are the card-free transaction verification code of the credit card, as shown below:

According to the staff of the bank, the last three digits of the signature column on the back of the credit card are the password verification code for card-free transactions, which is used by cardholders to verify their identity when making card-free consumption. Need to be reminded that once the cardholder leaks these three figures, it is easy to cause the amount in the card to be stolen!