This OT Cybersecurity online course consists of four modules. Module 600 explains the differences between IT and OT networks, and the security threats faced by OT. Module 610 discusses network segmentation and firewalls, and their advantages and disadvantages. Module 620 focuses on removable media management, including usage, storage, transport, viruses, and data loss or theft. Module 630 covers portable device management, including physical and digital security techniques, corporate OT security standards, and data loss or theft. Overall, the course aims to provide a comprehensive understanding of OT cybersecurity.