Summary Lead proactive counterintelligence and security activities across the United States government, integrating the instruments of national power to detect, report, deter, disrupt, investigate, exploit, and defeat foreign intelligence threats. Responsibilities The Security Directorate (SD) is embedded with the National Counterintelligence & Security Center (NCSC). NCSC/SD protects the nation's security interests by providing comprehensive security solutions and developing and implementing policies, guidance, and standards for personnel security, IC-wide and SCI security-relevant issues, and security clearance reform. SD also engages with government and industry partners to protect national security equities against foreign intelligence and security threats, and advance the U.S. Government's risk management environment to safeguard against adversarial and insider threats. NCSC/SD directly supports the DNI's responsibilities as the Security Executive Agency (SecEA) across the Executi...