Explore a conference talk that delves into the impacts of Internet of Things (IoT) demand attacks on power transmission grids. Learn about the development of a cascading outage analysis (COA) tool used to model conditions leading to cascading outages in large power grids. Discover how the research applies this tool to a North American regional transmission interconnection system with over 5,000 buses, investigating the effects of IoT demand manipulation attacks. Gain insights into numerical experiments and different types of IoT demand attacks designed to study cascading failures on transmission lines and system frequency interruptions. Understand the potential vulnerabilities and protections in power grids against IoT-based threats, and explore the challenges and takeaways for future power grid security.