Uso de grafos no auxílio da identificação de fraudes em cartões de crédito

Abstract

In this work we study credit card fraud in financial institution with the purpose of identifying nimbly and assertively when a given operation could be a fraud. To do so we started with a literature review covering the concepts of fraud, Open Banking and Network Theory. From this review we proposed an approach of reduction of the thousands credit card operations, sorting it by company sectors with higher likelihood of fraud within its operations. As a result we obtained some graphs that show us, within the sample studied, not only the eventual fraud caused by fraudsters from outside of the establishment, but also the fraud cases from fraudsters within the establishment, as well as the cases of users applying the so-called self frauds.