The electric power grid is a complex cyber-physical energy system that forms the backbone of critical infrastructure. The technology of electric power system operations and control has undergone significant changes during the past several years. These technological advancements within the grid improve reliability and capacity, but can introduce new vulnerabilities (e.g., with a growing number of connected embedded devices incorporating communication and control capabilities). The focus of this course is on electric power systems security and resilience in the context of adversarial threats. It examines the landscape of modern/smart/intelligent grid systems covering analysis and operation of the traditional power grid, the new challenges, and the emerging technologies that make the grid vulnerable. The emphasis is on the electric grid analysis, operation, and management, control architecture, and software systems. The electric power grid is a complex cyber-physical energy system that forms the backbone of critical infrastructure. The technology of electric power system operations and control has undergone significant changes during the past several years. These technological advancements within the grid improve reliability and capacity, but can introduce new vulnerabilities (e.g., with a growing number of connected embedded devices incorporating communication and control capabilities). The focus of this course is on electric power systems security and resilience in the context of adversarial threats. It examines the landscape of modern/smart/intelligent grid systems covering analysis and operation of the traditional power grid, the new challenges, and the emerging technologies that make the grid vulnerable. The emphasis is on the electric grid analysis, operation, and management, control architecture, and software systems.