Federal Security Service

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Famous house of architect Melnikov on Arbat street in Moscow Russia

8 Notable Buildings in Moscow

Text Top Secret typed on retro typewriter

How Secret Is Top Secret?

Taken at sunset, St. Basil's Cathedral towers over Red Square, Moscow, Russia.

7 Accomplished Paintings in Moscow

Ethel Rosenberg arrested in August 1950. Photograph dated Aug. 8, 1950. American civilians executed for espionage. Spies, communists, Julius Rosenberg

Spies Like Us: 10 Famous Names in the Espionage Game

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San Francisco, California/USA-1/18/20: Womens March at Civic Center marching with signs of political protest regarding equality also embracing 2020 presidential candidates and celebrating equality

How Does the U.S. Government Define the Difference Between a Protest and a Riot?

Salem Witch Trials. Photogravure after the painting by Walter McEwen titled - The Witches - circa 1890s.

How Rye Bread May Have Caused the Salem Witch Trials

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Estimated battle casualties, Normandy invasion, World War II. WWII, D-Day

Estimated Battle Casualties During the Normandy Invasion and Campaign to Liberate Paris (June–August 1944)

NBA Lakers Celtics Finals Kevin Garnett shooting.

10 Great Sports Rivalries

airplane in flight (plane, aircraft, flying)

7 Puzzling Plane Disappearances

Close up of praying mantis walking on stone ground against a blurred background in Japan

6 Animals That Eat Their Mates

Federal Security Service: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Last Updated: Jun 14, 2025

News •

Maps Show Russian Territory China Could Annex Amid FSB 'Suspicion' • June 10, 2025, 3:18 AM ET (Newsweek)

Ukraine destroys 40 aircraft deep inside Russia ahead of peace talks in Istanbul • June 1, 2025, 8:55 PM ET (AP)

Facts

Also Known As	FSB • Federal Counterintelligence Service • Federalnaya Sluzhba Bezopastnosti
Date	1994 - present
Headquarters	Moscow
Areas Of Involvement	intelligence • national security

Topics

Central Intelligence Agency National Aeronautics and Space Administration KGB Federal Bureau of Investigation National Security Agency MI6 Mossad U.S. Secret Service U.S. Department of Defense Environmental Protection Agency