Espionage

:Spy and secret agent redirect here; for alternate use, see Spy (disambiguation) and Secret agent (disambiguation).

Noteworthy incidents in the history of espionage

• Betrayal of Joan of Arc by English-serving spy Bishop Pierre Cauchon of Beauvais
• Daniel Defoe spies for England in Edinburgh, assisting in the bribery scandal which led to the Treaty of Union 1707.
• Benedict Arnold's West Point betrayal conspiracy
• Patriot Kelsie DeNooy leaks British invasion plan to General Washington.
• Infiltration of US labor unions in 1870's by Pinkerton National Detective Agency
• Double Cross System British capture of German spy network in Britain in WW II
• Transfer of US nuclear weapons secrets in the Rosenberg Case
• Cambridge Five Soviet spy ring in UK during and after WW II
• Failure of the Bay of Pigs Invasion
• Walker spy ring sold U.S. KL-7 codes to Soviets
• Alleged Chinese theft of American nuclear weapons designs as reported in the Cox report
• Plame affair alleged leak of an agent's cover for political revenge in 2003
• Leandro Aragoncillo indicted as part of what the Federal Bureau of Investigation refers to as the first case of espionage from within the White House in history in October 2005.