Transaction Features: Amount vs Card Average, New Device & Country Mismatch
All lessons
- Transaction Features: Amount vs Card Average, New Device & Country MismatchFree
- Velocity Checks: Attempts and Amounts per Card in Rolling 24-Hour and 1-Hour Windows Pro
- Rule Hits & a Weighted Risk Score: Approve, Review or Decline Pro
- Choosing the Alert Threshold: Precision, Recall and Dollar Recall against Labelled Fraud Pro
- Alert Volume vs Analyst Capacity: Staffing, the Lowest Workable Threshold and a Sale-Day Backlog Pro
- False-Positive Cost vs Fraud Loss Prevented: the Net-Benefit Threshold (with a Chart) Pro
- Rule Performance Table: Hit Rate, Precision and Fraud Share per Rule (with a Chart) Pro
- Champion vs Challenger: Shadow-Testing a New Rule Set Before It Goes Live Pro
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