The Defense Counterintelligence Security Agency (DCSA) is responsible for managing, responding and identifying foreign intelligence threats to the United States by working in conjunction with U.S. Intelligence, Security, and Law Enforcement counterparts. They work towards protecting the trusted workforce, and the cleared national industrial base, including the supply chains and personnel. They are also entrusted with managing the Insider Threat capabilities on behalf of the Department of Defense. 

URL:  Home (dcsa.mil)