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Arxiv

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Image Credit: Arxiv

Unveiling the Threat of Fraud Gangs to Graph Neural Networks: Multi-Target Graph Injection Attacks against GNN-Based Fraud Detectors

  • Graph neural networks (GNNs) are used for fraud detection, but attacks against GNN-based fraud detectors are understudied.
  • This study focuses on multi-target graph injection attacks by fraud gangs aiming to evade detection.
  • They propose MonTi, a transformer-based attack model that generates attributes and edges of attack nodes simultaneously.
  • Experimental results show that MonTi outperforms existing methods on real-world graphs.

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