Agency Mission
About this agency
The Defense Counterintelligence and Security Agency (DCSA), formerly Defense Security Service (DSS), DCSA is a strategic asset to the Nation and our allies continuously ensuring a trusted federal, industrial and affiliated workforce, and enabling industry's delivery of uncompromised capabilities by leveraging advanced technologies and innovation. We uniquely blend critical technology protection, trusted personnel vetting, counterintelligence, and professional education and certification to advance and preserve America's strategic edge. FOIA Reference Guide FOIA Regulations
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