"Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's intelligence program from an opposition's intelligence service."
Methods used to detect, prevent, and neutralize enemy intelligence activities, including sabotage, espionage, and terrorism.
Security: The protection of sensitive information through methods such as cryptography and access control.
Espionage: The act of gathering and collecting information, often through covert or illegal means, relating to a foreign government, organization or individual.
Counter-espionage: The prevention of espionage activities, including the identification and neutralization of foreign spies operating within military intelligence agencies.
Deception: The intentional use of false or misleading information to mislead adversaries, such as using false documents or planting false information.
HUMINT: Human Intelligence is the acquisition of intelligence through human sources, including interviews, debriefings, and elicitation.
Technical Intelligence: The collection and analysis of information from technical and scientific sources, such as electronic and communications intercepts.
SIGINT: Signals Intelligence is the interception of electronic signals, including radio, satellite, and computer communications.
CI Investigations: The investigative process of identifying and reporting suspicious activities, persons or groups that could potentially harm the military intelligence community.
Analysis and Interpretation: The process of collecting, analyzing, and interpreting information to make informed decisions and identify potential threats.
Security Clearance: The permissions to access classified information and sensitive areas within the military intelligence community.
Human Intelligence (HUMINT): HUMINT involves the gathering of intelligence from human sources, such as spies, informants, and double-agents.
Signal Intelligence (SIGINT): SIGINT refers to the collection and analysis of electronic communications, including email, phone calls, and other digital transmissions.
Imagery Intelligence (IMINT): IMINT involves the collection and analysis of visual images, like photos, videos, and satellite imagery.
Measurement and Signature Intelligence (MASINT): MASINT is a type of intelligence that involves the collection, processing, and analysis of physical attributes of targets, such as sound, radiation, or chemical composition.
Technical Intelligence (TECHINT): TECHINT involves the collection and analysis of information on foreign weapons systems and technology, including their design, production, specifications, and capabilities.
Open Source Intelligence (OSINT): OSINT refers to the collection, analysis, and dissemination of publicly available information, such as news, social media, and academic research.
Operational Intelligence (OPINT): OPINT involves the collection and analysis of information on foreign military operations, logistics, and tactics.
Financial Intelligence (FININT): FININT involves the collection and analysis of financial data, such as bank records and transactions to identify funding sources for illegal activities.
Cyber Intelligence (CYBINT): CYBINT refers to the collection and analysis of information on cyber threats, hacking, and cybercriminal activities.
Counterintelligence (CI): CI is a type of intelligence that involves identifying and countering foreign intelligence services and their activities, including espionage, sabotage, and terrorism.
"It includes gathering information and conducting activities to prevent espionage, sabotage, assassinations or other intelligence activities conducted by, for, or on behalf of foreign powers, organizations, or persons."
"Many countries will have multiple organizations focusing on a different aspect of counterintelligence, such as domestic, international, and counter-terrorism."
"Some states will formalize it as part of the police structure, such as the United States' Federal Bureau of Investigation (FBI)."
"Others will establish independent bodies, such as the United Kingdom's MI5."
"Others have both intelligence and counterintelligence grouped under the same agency, like the Canadian Security Intelligence Service (CSIS)."
"Gathering information and conducting activities to prevent espionage, sabotage, assassinations, or other intelligence activities."
"Any activity aimed at protecting an agency's intelligence program."
"An opposition's intelligence service."
"It aims to prevent espionage, sabotage, assassinations, or other intelligence activities conducted by foreign powers, organizations, or persons."
"It aims to protect an agency's intelligence program from an opposition's intelligence service."
"It focuses on domestic, international, and counter-terrorism aspects."
"Preventing espionage, sabotage, assassinations, or other intelligence activities."
"The United States' Federal Bureau of Investigation (FBI) formalizes counterintelligence as part of its police structure."
"The United Kingdom's MI5 establishes an independent body for counterintelligence."
"It includes gathering information and conducting activities."
"Multiple organizations within countries focus on counterterrorism as part of their counterintelligence efforts."
"Some states group intelligence and counterintelligence together, while others keep them separate under different agencies."
"Espionage, sabotage, assassinations, or other intelligence activities can be conducted by, for, or on behalf of foreign powers, organizations, or persons."
"The Canadian Security Intelligence Service (CSIS) combines intelligence and counterintelligence functions within the same agency."