Doppel is an AI-native platform specializing in social engineering defense, protecting organizations from AI-powered impersonation, fraud, phishing, and digital threats across multiple channels including social media, ads, telco, dark web, and crypto. It unifies digital risk protection and human risk management, automating threat detection, correlation, takedowns, training, and simulations. As a startup backed by a16z and Bessemer Ventures, it positions itself as a leader in countering mass-manufactured social engineering attacks.