For Official Use Only
A U.S. Government designation for information that has not been given a security classification pursuant to the criteria of an Executive Order dealing with national security, but which may be withheld from the public because disclosure would cause a foreseeable harm to an interest protected by one of the exemptions stated in the Freedom of Information Act (Section 552 of title 5, United States Code). (See: security label, security marking. Compare: classified.)
Senses
(O) /U.S. DoD/
A U.S. Government designation for information that has not been given a security classification pursuant to the criteria of an Executive Order dealing with national security, but which may be withheld from the public because disclosure would cause a foreseeable harm to an interest protected by one of the exemptions stated in the Freedom of Information Act (Section 552 of title 5, United States Code). (See: security label, security marking. Compare: classified.)
- IETF RFC 4949 (Internet Security Glossary)Jan 06, 2026RFC 4949 — Internet Security Glossary (Version 2)https://www.rfc-editor.org/rfc/rfc4949.txtRFC 4949 is published by the IETF Trust and marked as "Distribution of this memo is unlimited". Verify IETF Trust copyright/licensing terms for reuse.Source: IETF RFC 4949 (rfc-editor.org).