Method and system for assisting in the identification of merchants at which payment accounts have been compromised

摘要

A method and system for identifying merchants at which payment accounts (e.g., credit card accounts) have been compromised. A set of "pre-fraud" payment accounts is first identified, the pre-fraud accounts being compromised accounts previously used to conduct legitimate transactions. A set of suspect merchant accounts is selected, wherein transactions with each of the suspect merchant accounts have been conducted with no fewer than a threshold number of the pre-fraud payment accounts, and wherein at least a threshold percentage of the business transacted with the merchant was transacted using pre-fraud payment accounts. Once selected, the suspect merchant accounts can be subjected to further investigation.