What is a CVV code?
Card Verification Value (or CVV) code is an anti-fraud security feature to help verify that you are the one in possession of your credit card.
For Visa & MasterCard holders, the CVV code is the last 3-digit number printed on the signature panel on the back of the card.
For American Express holders, the CVV code is the 4-digit number printed on the front of the card above your credit card number.