Marine Corps Cyberspace Command

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The Marine Corps Cyberspace Command (abbreviated as MARFORCYBER[1]) is a functional formation of the United States Marine Corps to protect critical infrastructure from cyberattack.[2] It comprises a command element, the Marine Corps Network Operations Security Center, and a company from the Marine Corps Cryptologic Support Battalion (MCSB), a total of approximately 800 personnel.[3]


The Secretary of Defense recognized the significance of the cyberspace domain to national security, and directed the establishment of CYBERCOM as a sub-unified command under STRATCOM. CYBERCOM’s primary objective is to integrate the cyberspace operations capabilities of the services and agencies in support of the National Strategy to Secure Cyberspace (NSSC)[4]

In response, the Marine Corps established MARFORCYBER[5] in October 2009 (this was complemented by the standing up of the Fleet Cyber Command, U.S. Army Cyberspace Command (ARCYBER), and Air Force Cyberspace Command (AFCYBER). MARFORCYBER’s mission, in addition to our standard service component responsibilities, is to: plan, coordinate, integrate, synchronize, and direct our Corps’ full spectrum of cyberspace operations. This includes Department of Defense (DoD) Information Network (DoDIN)[6] operations, Defensive Cyber Operations (DCO), and planning and, when required, executing Offensive Cyberspace Operations (OCO). These operations support MAGTF, Joint and combined cyberspace requirements that enable freedom of action across all warfighting domains and deny the same to adversarial forces.


The MCNOSC’s[7] mission is to direct global Network Operations (NETOPS) and computer network defense of the Marine Corps Enterprise Network (MCEN)[8] and to provide technical leadership in support of Marine and joint forces operating worldwide. The MCNOSC is also responsible for intelligence gathering and analysis to develop future capabilities planning in accordance with DCO.

The MCNOSC is the Computer Network Defense Service Provider (CNDSP)[9] and serves as our Corps’ Global Network Operations and Security Center (GNOSC). The MCNOSC provides 24/7 NETOPS C2 through its Operations Center. Under the OPCON (operational command) of MARFORCYBER, the MCNOSC executes our Information NETOPS and DCO in support of our operational requirements in order to enhance freedom of action across all warfighting domains, while denying the efforts of adversaries to degrade or disrupt this advantage through cyberspace.

Key MCNOSC tasks include:

  • operating and defending the MCEN[8]
  • collecting and sharing DoDIN Situational Awareness
  • reporting and directing actions that proactively address threats and vulnerabilities
  • responding to operational incidents
  • providing technical leadership to ensure that our Corps and joint capabilities leverage new technologies to the advantage of the Marine warfighter

Company L is assigned under the OPCON of MARFORCYBER, and their mission is to plan and conduct offensive cyberspace operations in support of Service, Joint and combined cyberspace requirements. Company L may also provide support to defensive cyberspace operations (when directed).

See also[edit]


  1. ^ "Military Department Organization for Cyber Operations: George J. Flynn". Congressional Testimony  – via HighBeam Research (subscription required). 23 September 2010. Retrieved 5 February 2013. 
  2. ^ Fort Mead News: Marines launch into cyberspace with new command
  3. ^ Flynn, George J. (23 September 2010). "Statement of LtGen George J. Flynn, Deputy Commandant for Combat Development and Integration, Before the Subcommittee on Terrorism, Unconventional Threats, and Capabilities of the House Armed Services Committee Concerning Operating In the Digital Domain: Organizing the Military Departments For Cyber Operations" (PDF). House Armed Services Committee. Retrieved 10 October 2010. 
  4. ^ "The National Strategy to Secure CyberSpace: February 2013" (PDF). U.S. Department of Homeland Security, U.S. CERT. February 2013. Retrieved 24 April 2015. 
  5. ^ "U.S. Marine Corps Forces Cyberspace (MARFORCYBER)". Marine Corps Concepts and Programs. Retrieved 24 April 2015. 
  6. ^ Klooster, Larry (14 November 2013). "Operating and Defending the DoD Information Networks (DoDIN): DoDIN Operations and Defensive Cyber Operations (DCO)" (PDF). DISA. Retrieved 24 April 2015. 
  7. ^ McMorries, Col. David W (7 March 2013). "Marine Corps Network Operations and Security Center" (PDF). Marine Corps Network Operations and Security Center. Retrieved 24 April 2015. 
  8. ^ a b "Marine Corps Enterprise Network (MCEN)" (PDF). HQMC C4. Retrieved 24 April 2015. 
  9. ^ "DISA’s Computer Network Defense Service Provider Program (CNDSP)" (PDF). DISA. 7 May 2012. Retrieved 24 April 2015.