The Internet of Things (IoT) is experiencing hyper-growth, with revenue projected to explode from $3B in 2018 to $65B by 2026. As IoT touches various industry verticals and has wide-ranging applications, organizations are jumping on board, seeing the opportunity. However, building and maintaining an IoT system is not easy, with 60% of companies finding it more challenging than expected to build IoT services. Many organizations don't have an IoT testing strategy, which could lead to reliability, security, and performance issues. With proper testing, organizations can solve a range of problems across the spectrum with IoT, from monitoring and diagnostics to APIs, stress and performance testing, and using device simulators. Crafting an IoT testing strategy starts by understanding priorities, taking stock of the system's complexity, and devising the right tactics and tools. The key to building reliable, secure, and high-performing IoT systems is to ensure a robust testing strategy, especially for organizations with IoT applications in production or edge devices and sensors.