https://en.wikipedia.org/wiki/Classified_information
Classified information is confidential material that a government, corporation, or non-governmental organisation deems to be sensitive information, ...
https://www.directives.doe.gov/terms_definitions/classified-information-1
The term includes Restricted Data, Formerly Restricted Data, and National Security Information. The potential damage to the national security of each is denoted ...
https://firstamendment.mtsu.edu/article/classified-documents/
Jul 31, 2023 — It labels classified documents “confidential,” “secret,” and “top secret,” depending on their level of sensitivity.
https://www.politico.com/news/2025/12/02/trump-jack-smith-classified-docs-report-00673178
3 days ago — Trump: Jack Smith classified documents report should remain secret. Trump's request is a break from the Justice Department's handling of all ...
https://guides.loc.gov/finding-government-documents/declassified-documents
Jun 30, 2025 — Provides full-text access to over 500,000 pages of previously classified government documents. Covering major post-World War II era ...
https://main.un.org/securitycouncil/en/ombudsperson/classified_information
The Office of the Ombudsperson must have access to classified/confidential information which underlies individual listings.
https://www.brennancenter.org/our-work/research-reports/government-classification-and-mar-lago-documents
Oct 6, 2022 — There are three levels of classification, depending on the severity of the anticipated harm to national security: Confidential, Secret, and Top Secret.
https://www.law.cornell.edu/uscode/text/18/798
(a) Whoever knowingly and willfully communicates, furnishes, transmits, or otherwise makes available to an unauthorized person, or publishes, or uses in any ...
https://dornsife.usc.edu/news/stories/what-are-classified-documents/
Aug 12, 2022 — The U.S. government uses three levels of classification to designate how sensitive certain information is: confidential, secret and top secret.
https://www.archives.gov/isoo/faqs
Jan 3, 2025 — Describes common questions about marking classified documents in various formats. Oversight. Industrial Security approved carriers. Questions ...
https://www.justice.gov/archives/jm/criminal-resource-manual-2054-synopsis-classified-information-procedures-act-cipa
The tool with which the proper protection of classified information may be ensured in indicted cases is the Classified Information Procedures Act (CIPA).
https://pitt.libguides.com/declassified
Aug 20, 2025 — This guide is designed to facilitate access to declassified or still-classified government information in Pitt's library system or on the Web.
https://csrc.nist.gov/glossary/term/classified_information
Classified information or classified national security information means information that has been determined pursuant to EO 12958 as amended by EO 13292.
https://www.cdse.edu/Portals/124/Documents/jobaids/information/packaging_transcript.pdf?ver=V9LghGvxwp9JL3juy66l0Q%3D%3D
To begin, select the proper document coversheet and place it, face up, on top of the classified document. Since this document is classified as confidential, the ...
https://www.congress.gov/crs-product/RS21900
Feb 2, 2023 — This report provides an overview of the relationship between executive and legislative authority over national security information.
https://www.brookings.edu/articles/how-does-the-governments-classification-system-work/
“All classified documents are subject to periodic review for declassification.” The President has the authority to declassify any document. In 1999, for example ...
https://sgp.fas.org/library/quist2/chap_7.html
The US classification of information system has three classification levels -- Top Secret, Secret, and Confidential -- which are defined in EO 12356.
https://www.britannica.com/topic/classified-document
Oct 15, 2025 — Classified document, any document or other record, whether in paper, electronic, or other form, that contains information regarded as sensitive by a national ...