WO2004003676A3 - Fraud detection - Google Patents

Abstract

A fraud detection system (1) comprises a merchant portal (2) accessible by a purchaser along a communication network (4) in order to conduct a commercial transaction, and an analysis facility (3) in communication with the merchant portal (2). The merchant portal (2) is arranged to enable input by the purchaser of transaction data relating to the commercial transaction. The analysis facility (3) receives inputted transaction data from the merchant portal (2) along the communication network (4) and derives, independently and asynchronously from the merchant portal (2), one or more indicators of potential fraud by the purchaser as a function of the inputted transaction data. The transaction data is added to a queue (8) and is processed by a check agent (9) on a first-in-first-processed basis, independently and asynchronously from the merchant portal (2), according to a number of predetermined checks to obtain corresponding check results. A decision engine (11) aggregates the results of the checks according to one or more aggregation algorithms to derive the one or more indicators of potential fraud by the purchaser.