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Definitions Edit

Computing Edit

Countermeasures (also called security controls and safeguards) are

actions, devices, procedures, techniques, or other measures that reduce the vulnerability of an information system.[1]
[d]efensive security programs and activities which seek to protect against both foreign intelligence collection efforts and unauthorized access to, or disclosure of, protected facilities, information, and material.[2]

Military Edit

Countermeasures (also called security controls and safeguards) are

[a]nything which effectively negates or mitigates an adversary's ability to exploit vulnerabilities.[3]
[t]hat form of military science that, by the employment of devices and/or techniques, has as its objective the impairment of the operational effectiveness of enemy activity.[4]

Overview Edit

"They can be deployed preemptively or reactively. Devices and techniques used for EW countermeasures include electro-optical-infrared countermeasures and radio frequency countermeasures."[5]

"A countermeasure can reduce any component of riskthreat, vulnerability, or consequence."[6]

References Edit

  1. CNSSI 4009.
  2. AR 381-20, at 49.
  3. OPSEC Glossary of Terms.
  4. Department of Defense Dictionary of Military and Associated Terms at 54.
  5. FM 3-36, at 1-7.
  6. DHS Risk Lexicon, App. A, at 44.

See also Edit

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