Walk A Fraud Rule Through FMEA

Control backlash A top-up rule reduced fraud but blocked 9% of legitimate attempts and tripled support contacts. Fraud controls create their own failure modes. FMEA Failure mode -> Effect -> Detection -> Treatment Analyze both missed fraud and customer harm from the control itself. Blunt Block anything suspicious The rule becomes tunable, not political. Treat controls as systems: they reduce some failures and can create others. 01 Failure 02 Effect 03 Treatment Failure Mode Decision 1

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