Gallery/Case studies/One-pager · Real-time fraud

CUSTOMER STORY · CARD PAYMENTS

Northwind

4ms

Fraud decisions in four milliseconds, for 38 million cards.

Challenge

Rules caught fraud a day too late.

What we built

A real-time model on Databricks and AWS.

Result

$48M in fraud stopped in year one.

HOW IT WORKSNorthwind

One decision, in four milliseconds.

ONE CARD SWIPE, MILLISECONDS

1.210.90.9

FeaturesModel scorePolicy rulesReply to the terminal

Before · batch rulesNext morning

Now · real-time model4 ms

−27%

false declines

0.6 bps

fraud loss, from 1.4

38M

cards scored live

CUSTOMER STORY · CARD PAYMENTS02 / 03

WHAT WE BUILTNorthwind

Five layers, nine months.

ChannelsPoint of sale · online · ATM

StreamingKafka on AWS

Features & modelDatabricks, retrained weekly

Decision APIAWS Lambda, multi-region

Case managementThe bank’s existing tools

“We stopped apologising to customers for blocked cards.”

HEAD OF FRAUD STRATEGY

14 ENGINEERS · DATABRICKS + AWS03 / 03

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CASE STUDIES

One-pager · Real-time fraud

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Cover

Four milliseconds

What we built

THE PROMPT

Make a one-pager on our $48M fraud win for card issuers.

Your brain rewrites it with your proof and your buyer

MORE CASE STUDIES

Make yours, from your own brain.

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