What is the main function of DoDI O-3600.02?

The main function of DoDI O-3600.02 is to guide security classifications of cyber incidents. This directive focuses on establishing the framework for how cyber incidents are identified, classified, and reported within the Department of Defense. It provides essential guidance for understanding the severity and implications of various cyber incidents, ensuring that they are handled appropriately according to their classification. This classification process is crucial for effective incident response and risk management, allowing organizations to allocate resources and implement protective measures based on the assessed impact and threat level of the incidents.

The other options touch upon various important aspects of information security and incident management but do not capture the primary purpose of DoDI O-3600.02, which specifically addresses the categorization of cyber incidents in a structured manner.