CCV - Card Code Verification
The Card Code Verification (CCV), also known as a V-Code, is a three or four digit number, unique to every card and account, that helps protect consumers against fraud. We ask for this information in order to validate that your card is in your possession and that the card account is legitimate.
Where is the CCV located?
The 3-digit CCV is located on the signature panel on the back of your card, immediately following your account number.
American Express
The 4-digit CCV is located above your account number on the front of your card.