CVV and CVV2 (?)

Example of CVV2 for Visa debit/credit card

What is CVV2?

    CVV2 is a security feature for credit card transaction on the internet and over the phone.

    CVV itself stands for "Card Verification Value".

Discover card calls it the "Cardmember ID"

So what is CVV or CVV1?

    There are to types of CVV, classified as CVV/CVV1 and CVV2. The first CVV can only be found inside the card data, not elsewhere. While CVV2 is found only on your physical card.

Additional Info:

    Not all card association have the same length of CVV.

- American Express (Amex) = 4 digits (rare occasion of 3 digits).

- Visa = 3 digits.

- MasterCard = 3 digits.

- Discover = 3 digits (rare occasion of 4 digits).

Amex CVV2 can only be found in front of the card.

While other cards are at the back.