What is a CVV number and why do I need to enter it?
The CVV number (or CVN) is a 3- to 4-digit security code on the credit card and is used to establish the online shopper’s physical possession of the card. On American Express cards, it is the 4-digit unraised number on the front of the card. For Visa and MasterCard, it is the 3-digit number on the back of the card in the signature box. Misikko cannot authorize your credit card without this number.