Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

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classified national security information

Abbreviation(s) and Synonym(s): Definition(s):

  Information that has been determined pursuant to Executive Order (E.O.) 13526 or any predecessor order to require protection against unauthorized disclosure and is marked to indicate its classified status when in documentary form.
Source(s):
CNSSI 4009-2015 (E.O. 13526)

  See classified national security information.
Source(s):
CNSSI 4009-2015 under national security information (NSI)

  Information that has been determined pursuant to Executive Order 13526 or any predecessor order to require protection against unauthorized disclosure and is marked to indicate its classified status when in documentary form.
Source(s):
NIST SP 800-39 under Classified National Security Information (CNSSI 4009)