The credit card number, cvv2, and expiration date YY\MM can all be found on the credit card. Just fill it in clearly after you find it.

The credit card number is printed on the front of the credit card, usually consisting of 16 digits; cvv2 is on the back of the credit card, the last three digits of the 7 digits in the signature column; the credit card expiration date is printed on the front of the credit card, MONTH/ below the credit card number. At YEAR, the validity period of the credit card is expressed in month/year. 10/12 is valid until October 31, 2012.

Credit card dynamic verification code is an important credential for authorizing fast online payment. Under no circumstances can you disclose your dynamic verification code and card security code (CVV2) to anyone.

Extended information

The three-digit CVV2 code on the back of the credit card is the security code of the credit card when conducting online or telephone transactions. It is usually used to confirm that the payer actually holds the credit card during the transaction. Have that credit card. Since some websites, especially overseas websites, do not require a password when paying via credit card network, and transactions can be completed using only the card number, expiration date and CVV2 code, the CVV2 code is almost as important as the password.

Each bank has provided security reminders to cardholders through various channels such as their official website, WeChat, Weibo, and SMS. For example, when Guangfa Credit Card customer service hotline 95508 sends a text message containing a verification code, it will also remind cardholders to "do not forward or inform anyone, including bank personnel, to prevent fraud." UnionPay even warned at the end of the year: any request for transaction updates The behavior of verification code is suspected of fraud.

Reference source: Baidu Encyclopedia-Credit Card