CVV2 is a three-digit number printed at the end of the signature column on the back of the card. Generally, the CVV2 code is checked during off-site transaction/manual transaction (card swiping is not allowed). If you use China Merchants Bank credit card, the verification code can only be viewed through your own card.
(Reply time: 2065438+2 May 20091. Please refer to China Merchants Bank (official website) for the latest business changes.