False positives cost customers and revenue. How banks balance detection with experience.
The two-sided cost
Every missed fraud is a direct loss, and every wrongly blocked payment erodes trust. Track both rates together rather than optimising for detection alone.
Score in milliseconds, explain in words
Models should return a decision in under 100ms with reason codes that analysts and regulators can read. Champion-challenger testing lets you improve safely.
Run in shadow first
Compare the new model against production in shadow mode for several weeks before go-live. It gives risk and audit teams evidence, not assurances, and aligns with model-risk guidance.
Working through this in your organisation?
Talk to the team behind our Banking practice about what a practical first step looks like for you.