Real-Time Fraud Detection for Digital Wallet

Overview

Problem

Rule-based fraud checks generated high false positives and delayed transaction approval.

Solution

• Built streaming features and gradient-boosted fraud scoring
• Added adaptive thresholds by region, merchant type, and customer history
• Integrated explainable risk reasons for analyst review

Outcome

• 34% reduction in fraud losses
• 21% fewer false positives
• 9% increase in checkout conversion

“We cut fraud losses without penalizing good customers.”