The full form of CVV is Card Verification Value. The bank provides this security feature in debit, credit and ATM cards. You may find a three digit number which is printed on the reverse side of a debit or credit card on the signature strip’s right side. Due to this, the risk of fraud that could take place during online transaction is minimised. It also helps to verify the identity of the card’s owner. CVV has to be kept private. It is not printed on a bill or anywhere else unlike the original card number. A card holder should never share her CVV with anyone. It is different from the PIN of the card.