As children, we were educated never to trust strangers. Today, companies across the sharing and gig economies are fundamentally revolutionizing the way we assess, measure, and mitigate risk both in the offline and online worlds. Successfully identifying both fraudsters and malicious actors from good users lies at the heart of the modern sharing economy platform. Yet, these determinations must often be made without the benefit of deterministic data or face-to-face identity proofing. Learn how data scientists from leading platforms and marketplaces are tackling these challenges head-on with a combination of innovative technologies and new data sets.