A clandestine operation is an intelligence or military operation carried out in such a way that the operation goes unnoticed by the general population or specific enemy forces.
Until the 1970s, clandestine operations were primarily political in nature, generally aimed at assisting groups or nations favored by the sponsor. Examples include U.S. intelligence involvement with German and Japanese war criminals after World War II. Today these operations are numerous and include technology-related clandestine operations.
The bulk of clandestine operations are related to the gathering of intelligence, typically by both people (clandestine human intelligence) and by hidden sensors. Placement of underwater or land-based communications cable taps, cameras, microphones, traffic sensors, monitors such as sniffers, and similar systems require that the mission go undetected and unsuspected. Clandestine sensors may also be on unmanned underwater vehicles, reconnaissance (spy) satellites (such as Misty), low-observability unmanned aerial vehicles (UAV), or unmanned detectors (as in Operation Igloo White and its successors), or hand-placed by clandestine human operations.
The United States Department of Defense Dictionary of Military and Associated Terms (Joint Publication JP 1-02, dated 8 November 2010, Amended Through 15 February 2016) defines "clandestine", "clandestine intelligence collection", and "clandestine operation" as
clandestine — Any activity or operation sponsored or conducted by governmental departments or agencies with the intent to assure secrecy and concealment. (JP 2-01.2)
clandestine intelligence collection — The acquisition of protected intelligence information in a way designed to conceal the nature of the operation and protect the source. (JP 2-01.2)
clandestine operation — An operation sponsored or conducted by governmental departments or agencies in such a way as to assure secrecy or concealment. See also covert operation; overt operation.
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A clandestine cell system is a method for organizing a group of people, such as resistance fighters, sleeper agents, mobsters, or terrorists, to make it harder for the police or military to catch them. In a cell structure, each of the small groups of people in the cell know the identities of the people only in their own cell. Thus any cell member who is apprehended and interrogated (or who is a mole) will not likely know the identities of the higher-ranking individuals in the organization.
Espionage, spying, or intelligence gathering is the act of obtaining secret or confidential information (intelligence). A person who commits espionage is called an espionage agent or spy. Any individual or spy ring (a cooperating group of spies), in the service of a government, company, criminal organization, or independent operation, can commit espionage. The practice is clandestine, as it is by definition unwelcome. In some circumstances, it may be a legal tool of law enforcement and in others, it may be illegal and punishable by law.
The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collection, and processing of information and data for foreign and domestic intelligence and counterintelligence purposes, specializing in a discipline known as signals intelligence (SIGINT). The NSA is also tasked with the protection of U.S. communications networks and information systems.
Albeit very appealing, FPGA multitenancy in the cloud computing environment is currently on hold due to a number of recently discovered vulnerabilities to side-channel attacks and covert communication. In this work, we successfully demonstrate a new attack ...