http://ao3kahwiv3nyjch2hnx4xlstcir3xh2sw4tvue2uohmem4cfsxiussqd.onion/introduction-to-carding-business-complete-tutorial.html
The download link to the dumps or card details is usually provided over a
TOR based onion routing network to make sure that the location cannot be
tracked back. IRC channels are also used actively for this purpose.