Tech stories

Combating Marketplace Seller Fraud with Graph Neural Networks: A Journey to Enhanced Security

By Feng Zhao, Tingting Qiao and Erdi Calli, Data Scientists, Platform Risk.

September 12, 2023
 ·  8 minutes

Marketplace seller fraud is an ever-evolving challenge that poses significant risks to merchants' financial security. It consists of a range of malicious activities, for example: identity theft, phishing attacks, credential stuffing, and account takeovers. These fraudulent actions not only result in financial losses but also harm a company's reputation and erode customer trust. 

While business rule-based models and traditional machine learning (ML) algorithms have been effective to some extent, they struggle to keep up with the increasing sophistication of fraudulent activities. To safeguard merchants' funds and ensure a secure marketplace, it is crucial to continuously improve our fraud detection methods. 

In this post, we take you behind the scenes to explore how Adyen leverages the Graph Neural Networks (GNNs) to protect our customers' interests.

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