TERM

national security information

Information that has been determined, pursuant to Executive Order 12958 or any predecessor order, to require protection against unauthorized disclosure. [C4009]

Updated

Jan 06, 2026

Senses

(O) /U.S. Government/

Information that has been determined, pursuant to Executive Order 12958 or any predecessor order, to require protection against unauthorized disclosure. [C4009]

IETF RFC 4949 (Internet Security Glossary)

Bibliography

IETF RFC 4949 (Internet Security Glossary)
Accessed Jan 06, 2026Quoted
RFC 4949 — Internet Security Glossary (Version 2)
https://www.rfc-editor.org/rfc/rfc4949.txt
RFC 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).