What was the first Information Security Executive Order?

The first Information Security Executive Order is Executive Order 12958, which was signed by President Bill Clinton in 1995. However, from the options provided, the reference to order 8381 is mistakenly identified as being related to information security.

Executive Order 13526 establishes a uniform system for classifying, safeguarding, and declassifying national security information. It modernizes the framework for information security to meet the needs of the Information Age. Executive Order 12333 pertains more to the overall intelligence community and collection activities rather than specific information security measures. Executive Order 14028 focuses on improving the nation's cybersecurity, specifically addressing the modernization of federal government cybersecurity.

In this context, while Executive Order 8381 does not relate directly to information security, the actual first significant order concerning information security on a national level is indeed Executive Order 12958. This emphasizes the evolution and establishment of formal guidelines for the protection of classified information in the United States government, making it a foundational element in the development of information security practices.