The credit card security code is a set of 3 or 4 digits on the credit card, which is equivalent to the "second password" of the credit card.

Where is the security code of the credit card?

Different card organizations have different credit card security code locations:

UnionPay, JCB, MasterCard and VISA, the card security codes issued by these four major card organizations are printed in the last three digits of the signature column on the back of the credit card, generally in italics;

American Express Card Security Code is a 4-digit number printed on the front of the card and above the card number.

What is the use of the security code of the credit card?

The security code of a credit card can be said to be the "identity card" of a credit card. When conducting online or telephone transactions, the cardholder does not need a password, but only needs to provide the card number, expiration date and security code to complete the transaction.

For example, when an American Express card purchases through Haitao, an American Express settlement bank, it can complete the transaction through the card face information.

Here, I would like to remind you that for your own card security, credit card security code, card number, expiration date, transaction password, etc. Need to be carefully kept. It is best to carry the card with you, and cover these important information exposed on the surface of the card with tape to avoid being snooped by others.