Most scams reach their victims through a mobile device — which means the companies building and operating those devices and platforms hold extraordinary power to disrupt them. This session convenes leaders from the mobile ecosystem — device manufacturers, platform operators, network providers, and messaging services — to share the on-device defenses and AI-powered tools they're deploying, and to explore what becomes possible when they start sharing signals and inference model data across organizational boundaries. A session designed not just to describe best practices, but to begin setting them.