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Why Fraud Doesn’t Look Like Fraud to a Data Scientist

Fraud no longer looks like a discrete incident; data scientists see it as subtle behavioral deviations across a dynamic transaction ecosystem. Traditional rule‑based defenses create excessive false declines, eroding revenue and customer trust. Visa’s shift to deep‑learning models delivers 15‑20% higher authorization rates while cutting false positives. Continuous, AI‑driven monitoring now targets pre‑transaction signals, keeping pace with fraudsters who themselves use artificial intelligence.