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United States. In the United States, a security clearance is an official determination that an individual may access information classified by the United States Government. Security clearances are hierarchical; each level grants the holder access to information in that level and the levels below it.
The United States has three levels of classification: Confidential, Secret, and Top Secret. Each level of classification indicates an increasing degree of sensitivity. Thus, if one holds a Top Secret security clearance, one is allowed to handle information up to the level of Top Secret, including Secret and Confidential information. If one ...
The SCI designation is an add-on, not a special clearance level. Someone cleared at the SECRET level for some compartment X cannot see material in compartment X that is classified TOP SECRET. But the opposite is true: a person cleared for TOP SECRET with access to X material can also access SECRET material in compartment X. Compartments have ...
the object of a covert investigation, or a covert collection of information or intelligence. the identity of any person who is under covert surveillance. encryption and cryptographic systems. information or intelligence to, or received from, a foreign entity or terrorist group.
SCI is not a classification; SCI clearance has sometimes been called "above Top Secret", [2] but information at any classification level may exist within an SCI control system. When "decompartmentalized", this information is treated the same as collateral information at the same classification level.
The banner line might read SECRET//MEDIAN BELL//SPECIAL ACCESS REQUIRED, and the portion marking would read (S//MB). [17] Other variations move the special access warning to a second line, which would read MEDIAN BELL Special Control and Access Required (SCAR) Use Only or some other phrase directed by the program security instructions.
The GSCP uses three levels of classification: OFFICIAL, SECRET and TOP SECRET. [2] This is simpler than the old model and there is no direct relationship between the old and new classifications. "Unclassified" is deliberately omitted from the new model. Government bodies are not expected to automatically remark existing data, so there may be ...
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 confidential information, or be detrimental to ...