A Card Security Code (CSC), also called Card Verification Value (CVV), Card Verification Code (CVC), or Card Verification Number is a unique 3 or 4 digit number printed on your card, in addition to the account number.
It is neither embedded within the card’s magnetic field nor appears on the bills or receipts of the merchants. Verification number serves as a proof of physical possession of the card at the time of the online purchase and reduces the possibility of fraud.
Position of verification number imprint depends on the card in question.
American Express cards usually have a 4 digit number printed on the front of the card. If your American Express card doesn’t have a 4 digit number printed on the front, please enter a 3 digit number from the back of your card (last number group).
Verification number for other accepted cards (MasterCard, Maestro, Visa) is imprinted on the back of the card.
Blanka Vlašić Former high jump world champion