Mastercard Incorporated
SYSTEMS AND METHODS FOR DETECTION OF AND RESPONSE TO ACCOUNT RANGE FRAUD ATTACKS

Abstract:

Computing systems and methods for detecting account range fraud attacks in a payment card network are described herein. An attack detection and response (ADR) computing device detects a fraud attack in which a set of primary account numbers (PANs) that share a common bank identification number (BIN) are subject to potential fraud, retrieves transaction records associated with transactions initiated during the fraud attack, and, for each transaction, determines an issuer response that indicates whether the transaction was authorized or declined. The ADR computing device also extracts, for each authorized transaction, the PAN from the transaction record, identifies a respective issuer of the payment card associated with each extracted PAN, and transmits a fraud attack alert to each identified issuer, the fraud attack alert identifying the fraud attack, a time period associated therewith, and the PANs associated with the authorized transactions, causing the issuer to record the PANs as compromised.