CVV is an anti-fraud security feature to help verify that you are in possession of your credit card. For Visa/Mastercard, the three-digit CVV number is printed on the signature panel on the back of the card immediately after the card's account number. For American Express, the four-digit CVV number is printed on the front of the card above the card account number.
| Visa | On back of the card in the signature strip, following the full card number. |
|---|---|
| Mastercard | On back of the card in the signature strip, following the last four digits of the card number. |
| Bankcard | On back of the card in the signature strip, following the card number. |