Category: Espionage techniques Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Computer surveillance is the act of surveiling peoples computer activity without their knowledge, by accessing the computer itself. ... A radome at RAF Menwith Hill, a site with satellite downlink capabilities that some believe to be used by ECHELON. ECHELON is a name used to describe a highly secretive world-wide signals intelligence and analysis network said to be run by the UKUSA Community (composed of intelligence agencies of... Spy and Secret agent redirect here. ... In World War II, Magic was the United States codename for intelligence derived from the cryptanalysis of PURPLE, a Japanese foreign office cipher. ... It has been suggested that Mafia Fraud Attack be merged into this article or section. ... Holding The Court extended the Fourth Amendment protection from unreasonable searches and seizures to protect individuals in a telephone booth from wiretaps by authorities without a warrant. ... The NSA warrantless surveillance controversy concerns surveillance of United States persons incident to the collection of foreign intelligence by the U.S. National Security Agency (NSA) as part of the war on terror. ... Opportunistic Encryption (OE) allows for encryption for secure communication without any pre-arrangement specific to the pair of systems involved. ... Privacy has no definite boundaries and it has different meanings for different people. ... Secure communication describes means by which people can share information with varying degrees of certainty that third parties cannot know what was said. ... Surveillance cameras An helicopter flying over Lille, France, watching for possible rioting after the 2007 presidential election Surveillance is the monitoring of behavior. ... It has been suggested that Telephone recording,Voice logging be merged into this article or section. ... This article does not cite any references or sources. ... Ultra (sometimes capitalized ULTRA) was the name used by the British for intelligence resulting from decryption of German communications in World War II. The term eventually became the standard designation in both Britain and the United States for all intelligence from high-level cryptanalytic sources. ... Keystroke logging (often called keylogging) is a diagnostic tool used in software development that captures the users keystrokes. ... Spy and Secret agent redirect here. ... Agent handler is a generic term common to many intelligence organizations which can be applied to Case Officers, those who aspire to be Case officers, controllers, contacts, couriers and other assorted trainees. ... A Black Bag Job or Black Bag Operation is a covert entry action undertaken by a police force or intelligence agency. ... American dollar coin used for concealment Concealment devices, as the term suggests, are used to hide things for the purpose of secrecy. ... The German Lorenz cipher machine, used in World War II for encryption of very high-level general staff messages Cryptography (or cryptology; derived from Greek κρυπτός kryptós hidden, and the verb γράφω gráfo write) is the study of message secrecy. ... This article or section does not cite its references or sources. ... A dead drop or dead letter box, is a location used to secretly pass items between two people, without requiring them to meet. ... False flag operations are covert operations conducted by governments, corporations, or other organizations, which are designed to appear as if they are being carried out by other entities. ... In espionage, a honeypot or honeytrap is a trap set to capture, kill or compromise an enemy agent using sex as the lure. ... Industrial espionage and corporate espionage are phrases used to describe espionage conducted for commercial purposes instead of national security purposes. ... The examples and perspective in this article or section may not represent a worldwide view. ... This article or section does not cite its references or sources. ... Official Cover is a term used in espionage to refer to an operative who assumes a position in an organization with diplomatic ties to the government he or she is working for. ... Steganography is the art and science of writing hidden messages in such a way that no one apart from the intended recipient knows of the existence of the message; this is in contrast to cryptography, where the existence of the message itself is not disguised, but the content is obscured. ... Surveillance cameras An helicopter flying over Lille, France, watching for possible rioting after the 2007 presidential election Surveillance is the monitoring of behavior. ...