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 NCSC/Security Directorate (SD) protects the nation's security interests by providing comprehensive security solutions. SD develops and implements 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. The NCSC/SD directly supports the DNI's responsibilities as the Security Executive Agency (SecEA) across the Executive Branch and serves as the DNI's designee for oversight of national security pr...