Military Cyber Defense Modernization Act of 2024

This bill designates the Joint Force Headquarters-Department of Defense Information Network (JFHQ-DODIN) as a subordinate unified command under U.S. Cyber Command. It requires the Secretary of Defense to make this change within 120 days of enactment and notify all relevant DOD leaders, including military departments and combatant commands. The key provision establishes JFHQ-DODIN as the lead organization responsible for all network operations, security, and defense of the Department of Defense Information Network. This reorganization directly affects all DOD components that receive the notification, centralizing cyber defense authority under Cyber Command. The bill creates a formal command structure to streamline military cyber defense operations without altering existing cyber mission authority.