The Department of Defense Chief Information Officer is the Principal Staff Assistant and senior Information Technology advisor to the Secretary of Defense. This role includes overseeing many national security and defense business systems, managing information resources, and finding efficiencies. It is responsible for all matters relating to the Department's information enterprise, including:CommunicationsSpectrum managementNetwork policy and standardsInformation systemsCybersecurityPositioning, navigation, and timing policyDoD information enterprise that supports DoD command and control