Title: Using machine learning to protect our users

Summary: Depop has nearly 15 million users, but just like any other online market not all of them are legitimate. A common technique that scammers try to use on our users is to trick them into thinking they want to purchase an item, then moving the conversation out of the app where we can no longer detect any wrongdoings. In this talk, I will discuss the ways we build models to adapt to the specific behaviours scammers use on Depop so that we can automatically ban them with confidence to protect our users.