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MI5

MI5

Government agency · mi5.gov.uk
The Security Service, also known as MI5, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service, Government Communications Headquarters, and... Wikipedia
Founder: Vernon Kell
Founded: October 1909, United Kingdom
Agency executive: Ken McCallum, Director General
Annual budget: Single Intelligence Account £3.711 billion (2021–22)
Employees: 5,259
Formed: 7 October 1909; 114 years ago; (as the Secret Service Bureau)