Resideo manufactures and distributes IoT-connected sensing and controls products deployed across residential and commercial infrastructure. The portfolio spans smart thermostats, security cameras, water leak detection sensors, and home automation systems under brands including Honeywell Home and First Alert. The company operates globally, claiming presence in over 100 countries and deployment in more than 150 million homes.
The threat surface is substantial: billions of connected devices across building automation, climate control, and security systems create attack vectors at scale. Resideo's position in the supply chain - both as a direct manufacturer and through ADI Global Distribution - means vulnerabilities can propagate through professional installers and consumer channels simultaneously. HVAC control systems, video surveillance feeds, and water detection sensors all collect or control sensitive environmental data in residential and commercial spaces.
Security work here involves defending distributed IoT infrastructure, managing firmware and software updates across legacy and modern device generations, securing cloud connectivity for smart home systems, and hardening supply chain controls. The company operates across two business segments - Products and Solutions alongside distribution operations - requiring security operations that span manufacturing, firmware, cloud platforms, and third-party integrations.
