MegaSearch.cc lets potential buyers discover which fraud shops hold the cards theyre looking for. This free search engine aggregates data about compromised payment cards, and points searchers to various fraud shops selling them. Each shop requires users to create accounts and sign in before they can search for cards. The search engine does not store the compromised card numbers or any information about the card holders. It works with card shop owners to index the first six digits of all compromised account numbers that are for sale.”]
Source: https://krebsonsecurity.com/2012/01/megasearch-aims-to-index-fraud-site-wares/