Card Verification Code (CVC) or Card Verification Value (CVV)
The CVC or CVV is a 3 digit number, located on the backsside of your credit card, next to the signature box.
The CVC or CVV is specific to credit cards and allows you to make online payments. This code is a 3 digit number and is printed next to the signature box on the backside of your credit card.
On American Express cards the code is 4 digits and is on the front of the card just above the credit card number.