What is CVV2?
Introduction of "CVV2 (Card Verification Value 2)"
For Visa, MasterCard:

CVV2 is the last three digits of the number listed in the signature panel on the back of the card.


For American Express Card:
CVV2 is the four digits of the number listed on the left or right of the card number on the front of the card.
All the above information is for reference only and subject to change without prior notice.