Intelligence Search
Intelligence Search is the web's only search engine to exclusively index underground espionage web sites and geo-political intelligence sources.


Global Intelligence
Spy Words,
Codes & Terms
Home Spy Words, Terms and Codes
Here is a reference resource for all those spy codes and covert talk.

0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | PQ | R | S | T | UV | W | XYZ

  • FALN an underground group in Puerto Rico.
  • FALSE FLAG RECRUITMENT impersonation by a spy while recruiting an informant, defector, agent, etc.
  • FBI a US security service.
  • FDS One of Mexico's security services.
  • FIBONACCI SYSTEM a system of non-carrying addition used for one-time pad codes. For example, (Fib) 999 + 222 = 111.
  • FILLING the act of inserting material in a dead drop.
  • FLAPS & SEALS - the tradecraft involved when making surreptitious openings and closings of envelopes, seals, and secure pouches.
  • FLIP a U Turn made by the target during a vehicle surveillance operation.
  • FLOATER - a person used one-time, occasionally, or even unknowingly for an intelligence operation.
  • FLOATING BOX a method of surveillance where a team of operators establishes a containment box around the target wherever he/she goes.
  • FMLN Frente Farabundo Marti para Liberacion Nacional, an underground group in El Salvador.
    FOLLOW a surveillance team is executing a follow when they are shadowing a moving target. See also FLOATING BOX. A follow begins when the target exits the stakeout box and a surveillance operative attains command of the target. See also COMMAND OF THE TARGET.
  • FOOTFALL DETECTOR vibration sensor designed to detect walking humans.
  • FORENSICS - The use of science and technology to investigate and establish facts in criminal or civil courts of law.
    FOUR-BAGGER disclipline of an agent by FBI headquarters, consisting of censure, transfer, suspension, and probation.
  • FRA Sweden's military signals intelligence agency.
  • FREQUENCY FLOODING a technique that allows an ordinary telephone to become a covert listening device.
  • FRIEND slang for an agent, informant, or mole providing information to a handler.
  • FRIENDS slang for Britain's secret intelligence service, MI.6.
  • FRONT a legitimate-appearing business created by an intelligence agency or security service to provide cover for spies and their operations.
  • FSB Russia's federal security service, responsible for counterespionage.
  • FUNKSPIEL impersonation during electronic communications. Derived from the German phrase for "radio game".
  • FUNNY PAPER slang for the counterfeiting and forged documents section of an intelligence agency or security service.


Owned and Operated by Co.
All Rights Reserved 2008