Bitcan is a crypto exchange which allows for instant cryptocurrencies transactions of up to USD 13,500. The most frequently chosen payment form in this exchange is so-called pay by link. Unfortunately, the simplicity and convenience of pay by link does not always go hand in hand with security. Therefore, the biggest challenge Bitcan faced was increasing the security of transactions, especially in this area of payments.
Nethone proposed a proprietary script embedded on the client’s website, which has been extracting over 5,000 attributes about each Bitcan customer--fingerprinting their device and checking their behavior to spot any repetitive patterns and abnormalities that may imply fraud.
The very first step in cooperation with Bitcan was to reduce the high fraud rate as quickly as possible by implementing the rules that block the most common and strongest fraud cases.
Then Nethone closely observed and analysed the traffic to fuel the first ML model with proper data and to train it. That allowed for not only to fight fraud cases with much better accuracy, but also to reduce the number of good users blocked by the initially implemented rigid rules. This example again proved the superiority of ML models over static rules but also showed that their hybrid use has its benefits depending on the situation.
Currently, models are constantly refined and modified by a dedicated Data Scientist, based on the acquired knowledge and close cooperation with the client.