Defense Counterintelligence and Security Agency

The Defense Counterintelligence and Security Agency (DCSA) is a U.S. government organization responsible for ensuring national security through background checks, security clearance processing, and safeguarding sensitive information. It evaluates the trustworthiness of individuals working with defense and intelligence agencies, preventing espionage and insider threats. DCSA also oversees security procedures at defense facilities, helping protect vital technological and military information from threats both internal and external. Its mission is to support national security by managing personnel security programs and conducting investigations to maintain a secure environment for U.S. defense operations.