Nethone is an AI-based fraud detection and prevention company that provides "Know Your User" (KYU) profiling technology. It helps online merchants and financial institutions detect and eliminate fraudulent activities such as card-not-present fraud and account takeovers using machine learning and behavioral biometrics. Acquired by Mangopay in November 2022, Nethone operates as a standalone company, enhancing Mangopay's anti-fraud solutions for marketplaces.