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Take your time. Listen, inspect, then decide.

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15 real cases. Your next decision.

The numbers balance.
Does the story?

Real failures. Official findings. Put your judgement to work on 15 documented financial-services incidents.

15 real cases · Pick one, try three or explore all · No sign-up

Knight Capital / SEC findings
212 orders
A deployment failure. Millions of erroneous orders.
Customer orders212
Erroneous ordersMillions
Core questionCould it be stopped?
InputOutputControl?

Compare the input, output and control.

01Open the evidence02Choose your next action03See the control lesson

Based on published official records. Questions and control lessons are educational interpretations, not historical dialogue, legal advice, institutional endorsements or a professional certification.

The Banking Detective case library · Collection 01

A case for every kind of judgement.

Explore a single incident, inspect its official source and decide which control response addresses the failure.