CVC/CVV2 is an anti-fraud security feature to help verify that you are in possession of your credit card. For Visa/Mastercard, the three-digit CVC/CVV2 number is printed on the signature panel on the back of the card immediately after the card's account number.
* Card Verification Value 2 (Also known as The Visa three-digit code) is a name given by Visa for their 3 digit security code at the back of the credit card.
* Card Verification Code is a name given by MasterCard for their 3 digit security code.