Why does Amex have 2 CVV numbers?
Why do American Express cards have two CVV/CSC numbers? The 4 digit code on the front is used by merchants for transactions when the card is not present. The one on the back is used by Amex that you have the card in your possession when calling on with a card related issue.
Why does my card have two CVV?
There are two CVVs associated with most debit or credit cards. The first is encoded in the magnetic strip used for in-person transactions; the second is visible on the card. This is the one you must input when making an online purchase.
Does Amex have a 3 or 4 digit CVV?
If you have an American Express® Card, you will find the four-digit credit card CVV on the front.
Can CVV be 2 numbers?
A CVV is a three- or four-digit number on a credit or debit card that helps prevent fraud. Sometimes called a CVV2, it's meant to protect cardholders from unauthorized transactions by providing a second layer of protection. A CVV number is also known by other names, including: Card security code (CSC)