Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Cases

Counterintelligence Cases Past and Present

The FBI has been investigating cases of foreign counterintelligence since its earliest days. The following is a sample of some major counterintelligence and economic espionage cases the FBI has helped investigate. In general, the cases are listed chronologically by the year the prime suspect was arrested.

Summaries of most of these cases can be found below.

2015

Mostafa Ahmed Awwad

2013

- Bryan Underwood

2012

- Stewart David Nozette

2011

- Kexue Huang
-
Elliot Doxer

2010

- Walter Kendall Myers and Gwendolyn Myers
- Ten Russian Agents in U.S. (Ghost Stories)

2009

- Harold & Nathaniel Nicholson | Harold Nicholson sentencing

2008

- Hassan Abujihaad/Paul R. Hall
- Dongfan “Greg” Chung, Gregg William Bergersen

2007

- Najib Shemami

- Sami Khoshaba Latchin (Arrested in 2004)

2006

- Xiaodong Sheldon Meng Conviction

2005

- Noshir S. Gowadia | Sentencing
- Leandro Aragoncillo | Michael Ray Aquino

- Lawrence Franklin

2004

- Kenneth Wayne Ford

- Donald W. Keyser

2001

- Robert P. Hanssen

- Ana Belen Montes

- Brian P. Regan

2000

- George Trofimoff

- Mariano Faget

1999

- Jean-Philippe Wispelaere

1998

- La Red Avispa or The Cuban Spy Ring

1997

- Kurt Alan Stand, Therese Marie Squillacote, and James Michael Clark
- Ten Hong Lee and Taiwan’s Four Pillars

1996

- Robert Stephan Lipka
- Earl Edwin Pitts

1994

- Aldrich Ames

1993

- Steven John Lalas

1988

- James Hall III
- Douglas Tsou

1986

- Edward Lee Howard
- Vladimir M. Ismaylov
- Clayton John Lonetree

1985

Because of a series of high profile espionage arrests, the press dubbed 1985 “the Year of the Spy.”That spring, the John Walker Spy Ring—John Walker, Jerry Whitworth, Arthur Walker, and Michael Walker—was arrested for passing classified material to the Soviet Union. On November 21, Navy intelligence analyst Jonathan Jay Pollard was arrested for spying for Israel. On November 23, Larry Wu-Tai Chin, a former CIA analyst, was arrested on charges of spying for the People’s Republic of China since 1952. On November 25, former National Security Agency employee Ronald William Pelton, was arrested for selling military secrets to the Soviets. CIA employee Sharon Marie Scranage and boyfriend Michael Soussoudis were arrested in July for passing material to Ghanian intelligence.

1984

- Thomas Cavanagh

- Karl Frantisek Koecher

- Richard W. Miller and Svetlana and Nikolai Ogorodnikov

1983

- James Durwood Harper

1981

- William Holden Bell and Marian Zacharski

1978

- Valdik Enger and Rudolf Chernyayev

- William Kampiles

- Ronald Humphrey and David Truong

1977

- Christopher John Boyce and Andrew Daulton Lee

1972

- “Sergey Viktorovich Petrov”

1954

- Maksim Martynov

1950

- Julius and Ethel Rosenberg

1946

- Teodore Erdmann Erich Lau/Ludwig Spy Ring

1944

- Velvalee Dickinson | Byte Out of History

1943

- Vasilli Zubilin

1942

- George John Dasch and Nazis
- Anastase A. Vonsiatsky

1941

- Duquesne Spy Ring

1938

-
Guenther Rumrich and Nazi spy ring