(DoD) The recruitment of agents within or the infiltration of agents or technical monitoring devices in an organization or group for the purpose of acquiring information or of influencing its activities.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). penetration (intelligence). Retrieved September 20, 2026, from http://smartdefine.org/penetration_(intelligence)/definitions/1963288 |
| Chicago | Military Dictionary (DoD). 2011. "penetration (intelligence)" http://smartdefine.org/penetration_(intelligence)/definitions/1963288 (accessed September 20, 2026). |
| Harvard | Military Dictionary (DoD) 2011, penetration (intelligence), Smart Define, viewed 20 September, 2026, <http://smartdefine.org/penetration_(intelligence)/definitions/1963288>. |
| MLA | Military Dictionary (DoD). "penetration (intelligence)" 4 April 2011. Web. 20 September 2026. <http://smartdefine.org/penetration_(intelligence)/definitions/1963288> |