Carding
A process of obtaining valuable items through the use of someone else's credit/debit card is known as carding. It's usually performed in bulk because the validity of credit card numbers is unknown. People and websites that do carding are known as carders
Gift cards
Some examples include Bestcvvdumps, Kriminalccshop and Miladccshopnewsite. These sites have their own channels to extract card credentials. For example, they can hack website's payment page. Once the card is hacked, carders order goods and sell them at huge discounts. Carders like to buy gift cards because they are much harder to track