Jason Tan (Fraud Detection / AI) at Sift — San Francisco, United States

Jason Tan co-founded Sift (formerly Sift Science) in 2011, building a machine learning-powered fraud prevention platform used by major companies including Airbnb, Twitter, and DoorDash. Sift processes billions of events daily to detect account takeover, payment fraud, and content abuse. Tan has been a vocal advocate for using behavioral AI signals rather than rigid rules to detect sophisticated fraud patterns.