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Levels and categories of classification. The United States government classifies sensitive information according to the degree which the unauthorized disclosure would damage national security. The three primary levels of classification (from least to greatest) are Confidential, Secret, and Top Secret.
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.
Clearance is a general classification, that comprises a variety of rules controlling the level of permission required to view some classified information, and how it must be stored, transmitted, and destroyed.
Intelligence expert Amy Zegart of Stanford University noted that Trump revealed code word intelligence, which is the highest layer of classification, even higher than the "top secret
All SCI must be handled within formal access control systems established by the Director of National Intelligence. [1] 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.
A BIGOT list (or bigot list) is a list of personnel possessing appropriate security clearance and who are cleared to know details of a particular operation, or other sensitive information. Etymology. There are two slightly differing, but related, etymologies for the origin of the term:
The basis for compartmentalization is the idea that, if fewer people know the details of a mission or task, the risk or likelihood that such information will be compromised or fall into the hands of the opposition is decreased. Hence, varying levels of clearance within organizations exist.
The United States Secret Service uses code names for U.S. presidents, first ladies, and other prominent persons and locations.
To create the code, a series of international agencies assigned 26 clear-code words (also known as "phonetic words") acrophonically to the letters of the Roman alphabet, with the goal that the letters and numbers would be easily distinguishable from one another over radio and telephone.
Code word may refer to: Code word (communication), an element of a standardized code or protocol. Code word (figure of speech), designed to convey a predetermined meaning to a receptive audience, while remaining inconspicuous to others. Procedure word, in voice communication.