Closed-loop GenAI payment fraud red-teaming system: 34-vector attack ontology, 3-layer hybrid simulator, and a 3-layer detection ensemble that co-evolves against its own attacker in an adversarial Arena. Real fidelity metrics, SHAP explainability, and per-vector detection reporting. Built for Mastercard Innovation Challenge 2026.
machine-learning replication detection feedback-loop hybrid-simulation payment-fraud generative-ai shap-explainability defense-system real-world-systems sentinel-loop mastercard-innovation-challenge-2026
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Updated
Aug 29, 2026 - Python