Answer: 


All web shops are obliged to ask for your CVC (Card Verification Code) when you make a credit card payment. This is an additional security check and intended to prevent credit card fraud. The Card Verification Code is a unique number that is linked to your credit card number.

The location of this CVC is different for each credit card:
- MasterCard, Visa: the last 3 black digits of the sequence of digits on the right-hand side in the signature panel on the back of your card.