The main purpose of the Protecting DOD Data Act of 2025 is to enhance the security of personal data that affects the operational safety of Department of Defense (DOD) personnel. This legislation aims to ensure that sensitive information about military members and civilian employees is adequately protected from unauthorized access, use, or sharing. Key provisions of the Act include several important requirements. First, the Secretary of Defense is tasked with identifying and prioritizing the protection of personal data that could impact operational security.