Executive Summary PayPal is a global company operating a worldwide online payments system. The company’s innovative open digital platform gives its 218 million active account holders in 202 markets across 25 currencies the confidence to connect and transact online. Fraud prevention is an important area of investment for PayPal. The company has successfully used machine learning and deployed robust fraud prevention models for more than 10 years. However, fraudsters are constantly changing their patterns and uncovering new ways to take advantage of the system. As a result, PayPal must continuously find ways to improve fraud detection accuracy and decrease fraud detection the time. Using H2O Driverless AI, the PayPal team was able to fi nd significant new modelling features which

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