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MI5
MI5 ( Military Intelligence, Section 5), officially the Security Service, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ), and Defence Intelligence (DI). MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989. The service is directed to protect British parliamentary democracy and economic interests and to counter terrorism and espionage within the United Kingdom. Within the civil service community, the service is colloquially known as ''Box'', or ''Box 500'', after its official wartime address of PO Box 500; its current address is PO Box 3255, London SW1P 1AE. The Security Service is derived from the Secret Service Bureau, founded in 1909. At the start of the First World War, it was responsible for the arrest of enemy spies, or suspected enemy spies. T ...
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Ken McCallum
Sir Kenneth Douglas McCallum (born 1974) is a British intelligence officer who has been serving as the Director General of MI5 since 2020. Early life and education McCallum was born in Glasgow, Scotland, in 1974. He attended a state school, after which he studied mathematics at the University of Glasgow, graduating with a first-class honours degree in 1996. Career McCallum has been an intelligence officer at MI5 for over two decades, including service focused on Northern Ireland-related terrorism and leading counter-terrorism investigations during the London 2012 Olympic Games. He was appointed Deputy Director General of MI5 in April 2017. He said of his early career: "I spent my twenties mostly trying to recruit terrorists inside terrorist organisations to work as secret agents o keepthe rest of us safe." In 2018, McCallum took charge of the MI5 response to the attempted assassination of Sergei Skripal. Director General of MI5 In April 2020, McCallum succeeded Sir Andr ...
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Secret Intelligence Service
The Secret Intelligence Service (SIS), commonly known as MI6 (MI numbers, Military Intelligence, Section 6), is the foreign intelligence service of the United Kingdom, tasked mainly with the covert overseas collection and analysis of Human intelligence (intelligence gathering), human intelligence on foreign nationals in support of its Five Eyes partners. SIS is one of the British intelligence agencies and the Chief of the Secret Intelligence Service ("C") is directly accountable to the Foreign Secretary (United Kingdom), Foreign Secretary. Formed in 1909 as the foreign section of the Secret Service Bureau, the section grew greatly during the World War I, First World War, officially adopting its current name around 1920. The name "MI6" originated as a convenient label during the World War II, Second World War, when SIS was known by many names. It is still commonly used today. The existence of SIS was not officially acknowledged until 1994. That year the Intelligence Services A ...
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British Secret Service Bureau
The Secret Intelligence Service (SIS), commonly known as MI6 ( Military Intelligence, Section 6), is the foreign intelligence service of the United Kingdom, tasked mainly with the covert overseas collection and analysis of human intelligence on foreign nationals in support of its Five Eyes partners. SIS is one of the British intelligence agencies and the Chief of the Secret Intelligence Service ("C") is directly accountable to the Foreign Secretary. Formed in 1909 as the foreign section of the Secret Service Bureau, the section grew greatly during the First World War, officially adopting its current name around 1920. The name "MI6" originated as a convenient label during the Second World War, when SIS was known by many names. It is still commonly used today. The existence of SIS was not officially acknowledged until 1994. That year the Intelligence Services Act 1994 (ISA) was introduced to Parliament, to place the organisation on a statutory footing for the first time. ...
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Double-Cross System
The Double-Cross System or XX System was a World War II counter-espionage and deception operation of the British Security Service ( MI5). Nazi agents in Britain – real and false – were captured, turned themselves in or simply announced themselves, and were then used by the British to broadcast mainly disinformation to their Nazi controllers. Its operations were overseen by the Twenty Committee under the chairmanship of John Cecil Masterman; the name of the committee comes from the number 20 in Roman numerals: "XX" (i.e. a double cross). The policy of MI5 during the war was initially to use the system for counter-espionage. It was only later that its potential for deception purposes was realised. Of the agents from the German intelligence services, ''Abwehr'' and '' Sicherheitsdienst'' (SD), while many who reached British shores turned themselves in to the authorities, others were apprehended after they made elementary mistakes during their operations. In addition, some were ...
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Single Intelligence Account
The Government of the United Kingdom maintains several Intelligence agency, intelligence agencies that deal with secret intelligence. These agencies are responsible for Intelligence collection management, collecting, Intelligence analysis, analysing and exploiting foreign and domestic intelligence, providing military intelligence, performing espionage and counter-espionage. Their intelligence assessments contribute to the conduct of the foreign relations of the United Kingdom, maintaining the National Security Strategy (United Kingdom), national security of the United Kingdom, military planning, public safety, and law enforcement in the United Kingdom. The four main agencies are the Secret Intelligence Service (SIS or MI6), the MI5, Security Service (MI5), the Government Communications Headquarters (GCHQ) and Defence Intelligence (DI). The agencies are organised under three Departments of the United Kingdom Government, government departments, the Foreign, Commonwealth and Developmen ...
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Thames House
Thames House is an office building in Millbank, London, on the north bank of the River Thames adjacent to Lambeth Bridge. Originally used as offices by Imperial Chemical Industries (ICI), it has served as the headquarters of the United Kingdom's internal MI5, Security Service (commonly known as MI5) since December 1994. It also served as the London headquarters of the Northern Ireland Office (NIO) until March 2013. History The building was constructed in 1929–30 by Mowlem, John Mowlem & Co on riverside land cleared after the disastrous 1928 Thames flood severely damaged run-down residential properties. It was built to designs by Sir Frank Baines, of the Government's Office of Works. It is of design uniform with but not identical to Imperial Chemical House which is opposite it on the north side of Horseferry Road; while Imperial Chemical House remained exclusively for ICI until its exit, Thames House had additional tenants alongside ICI throughout history, including the London ...
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Director General Of MI5
__NOTOC__ The Director General of the Security Service is the head of the Security Service (commonly known as MI5), the United Kingdom's internal counter-intelligence and security agency. The Director General is assisted by a Deputy Director General and an Assistant Director General, and reports to the Home Secretary, although the Security Service is not formally part of the Home Office The Home Office (HO), also known (especially in official papers and when referred to in Parliament) as the Home Department, is the United Kingdom's interior ministry. It is responsible for public safety and policing, border security, immigr .... List of directors general Directors General have been: # Maj Gen Sir Vernon Kell, 1909–1940 # Brigadier 'Jasper' Harker, '' Acting'', June 1940 – April 1941 # Sir David Petrie, 1941–1946 # Sir Percy Sillitoe, 1946–1953 # Sir Dick White, 1953–1956 # Sir Roger Hollis, 1956–1965 # Sir Martin Furnival Jones, 1965–1972 # Sir Michael Hanle ...
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Counter-espionage
Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's intelligence program from an opposition's intelligence service. It includes gathering information and conducting activities to prevent espionage, sabotage, assassinations or other intelligence activities conducted by, for, or on behalf of foreign powers, organizations or persons. Many countries will have multiple organizations focusing on a different aspect of counterintelligence, such as domestic, international, and counter-terrorism. Some states will formalize it as part of the police structure, such as the United States' Federal Bureau of Investigation (FBI). Others will establish independent bodies, such as the United Kingdom's MI5, others have both intelligence and counterintelligence grouped under the same agency, like the Canadian Security Intelligence Service (CSIS). History Modern tactics of espionage and dedicated government intelligence ...
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MI Numbers
The Directorate of Military Intelligence (DMI) was a department of the British War Office. Over its lifetime the Directorate underwent a number of organisational changes, absorbing and shedding sections over time. History The first instance of an organisation which would later become the DMI was the Department of Topography & Statistics, formed by Major Thomas Best Jervis, late of the Bombay Engineer Corps, in 1854 in the early stages of the Crimean War. In 1873 the Intelligence Branch was created within the Quartermaster General's Department with an initial staff of seven officers. Initially the Intelligence Branch was solely concerned with collecting intelligence, but under the leadership of Henry Brackenbury, a protege of influential Adjutant-General Lord Wolseley, it was increasingly concerned with planning. However, despite these steps towards a nascent general staff, the Intelligence Branch remained a purely advisory body, something that sharply limited its influ ...
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Security Service Act 1989
The Security Service Act 1989 (c. 5) is an Act of the United Kingdom Parliament. The Act established a statutory basis of the UK Security Service (MI5) for the first time. Prior to the Act, successive UK governments had denied the existence of MI5, despite its operation since 1909, . The Act begins, "There shall continue to be a Security Service .." The first section defines the function of the Service as In the next paragraph it adds the further function, "to safeguard the economic well-being of the United Kingdom against threats posed by the actions or intentions of persons outside the British Islands." The Act was amended by the Security Service Act 1996 to include supporting the police and other law enforcement agencies in the prevention and detection of serious crime. See also * David Maxwell Fyfe, 1st Earl of Kilmuir *'' Spycatcher'' References External links *Statutory Basis - MI5 - The Security Service British intelligence agencies United Kingdom Acts of Parl ...
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Government Communications Headquarters
Government Communications Headquarters (GCHQ) is an intelligence and security organisation responsible for providing signals intelligence (SIGINT) and information assurance (IA) to the government and armed forces of the United Kingdom. Primarily based at The Doughnut in the suburbs of Cheltenham, GCHQ is the responsibility of the country's Secretary of State for Foreign and Commonwealth Affairs (Foreign Secretary), but it is not a part of the Foreign Office and its director ranks as a Permanent Secretary. GCHQ was originally established after the First World War as the Government Code and Cypher School (GC&CS) and was known under that name until 1946. During the Second World War it was located at Bletchley Park, where it was responsible for breaking the German Enigma codes. There are two main components of GCHQ, the Composite Signals Organisation (CSO), which is responsible for gathering information, and the National Cyber Security Centre (NCSC), which is responsible for s ...
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