- National security information was information owned by, produced by, produced for, and under the control of the United States government. Pursuant to Executive Order 12958, signed on April 17, 1995, as amended by Executive Order 13292 on March 25, 2003, and Executive Order 13526 on December 29, 2009, national security information was classified as “TOP SECRET,” “SECRET,” or “CONFIDENTIAL,” as follows: