Final answer:
The DoD information security requirements are rooted in Executive Order 14028 on Improving the Nation's Cybersecurity, the historical National Security Act of 1947, and policies by organizations like DISA. These documents establish the framework that guides modern cybersecurity policies within the DoD.
Step-by-step explanation:
The framework for Department of Defense (DoD) information security requirements is grounded in a combination of executive orders, legislation, and policy documents. One current and relevant set of guidance is detailed in Executive Order 14028 on Improving the Nation's Cybersecurity, issued in May 2021. This order seeks to modernize cybersecurity defenses by implementing stronger cybersecurity standards in the federal government, including the DoD.
The Defense Information Systems Agency (DISA) plays a key role in developing DoD cybersecurity policies, implementing protective measures, and ensuring compliance. Furthermore, the National Security Policy, dating back to the National Security Act of 1947 and subsequent amendments, has established foundational structures such as the National Security Council and the Central Intelligence Agency (CIA), along with the creation of the Department of Defense. These historical documents and structures serve as a basis from which current cybersecurity policies evolve to address today's challenges.
It is also worth noting the link between the Freedom of Information Act (FOIA) and DoD information security. The FOIA outlines the disclosure of federal documents and information to the public, but does include exceptions for sensitive information that would compromise national security, thus being relevant to DoD information security practices.