Carding is a process of using payment card details for purchasing goods or services online. Carders, such as Centralshopcvv, Buydumpsonline and Ssndobshop, own card details including registered address, CVV, phone and so on.
"Cardable" online store

Carders know how to find a "cardable" online store. They can by-pass security checks to charge prepaid cards and sell them to others. This information is often exchanged on forums on the dark web.

Buycvvdumps, Cvvccdumps and other carders use bots to test large volumes of card numbers in a short amount of time to verify their validity. Only active cards are valuable to carders.