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This list covers security clearance terms used in the United States of America. Within the U.S. government, security clearance levels serve as a mechanism to ascertain which individuals are authorized to access sensitive or classified information. These levels often appear in employment postings for Defense related jobs and other jobs involving substantial amounts of responsibility, such as ...
An example of a U.S. classified document; page 13 of a United States National Security Agency report [31] on the USS Liberty incident, partially declassified and released to the public in July 2003. The original overall classification of the page, "Top Secret" code word UMBRA, is shown at top and bottom. The classification of individual paragraphs and reference titles is shown in parentheses ...
The United States Department of Homeland Security (DHS) is the U.S. federal executive department responsible for public security, roughly comparable to the interior or home ministries of other countries. Its stated missions involve anti-terrorism, border security, immigration and customs, cyber security, and disaster prevention and management.
A typical classified document. Page 13 of a U.S. National Security Agency report [1] on the USS Liberty incident, partially declassified and released to the public in July 2004. The original overall classification of the page, "top secret", and the Special Intelligence code word "umbra", are shown at top and bottom. The classification of individual paragraphs and reference titles is shown in ...
The United States Secret Service (USSS or Secret Service) is a federal law enforcement agency under the Department of Homeland Security with the purpose of conducting investigations into currency and financial-payment crime, and protecting U.S. political leaders, their families, and visiting heads of state or government. [3] The Secret Service was, until 2003, part of the Department of the ...
The cover sheet used for Sensitive Security Information. Sensitive security information (SSI) is a category of United States sensitive but unclassified information obtained or developed in the conduct of security activities, the public disclosure of which would constitute an unwarranted invasion of privacy, reveal trade secrets or privileged or ...
A security clearance is a status granted to individuals allowing them access to classified information (state or organizational secrets) or to restricted areas, after completion of a thorough background check. The term "security clearance" is also sometimes used in private organizations that have a formal process to vet employees for access to sensitive information. A clearance by itself is ...
Sensitive compartmented information (SCI) is a type of United States classified information concerning or derived from sensitive intelligence sources, methods, or analytical processes. All SCI must be handled within formal access control systems established by the Director of National Intelligence. [1]