Mary B. McCord is the Acting Assistant Attorney General and Principal Deputy Assistant Attorney General for National Security at the U.S. Department of Justice. Ms. McCord oversees nearly 400 employees responsible for protecting the country against international and domestic terrorism, espionage, cyber, and other national security threats. She also works closely with the nation’s 93 United States Attorney’s Offices in the investigation and prosecution of national security matters in their districts.

Ms. McCord joined the National Security Division in 2014 from the U.S. Attorney’s Office for the District of Columbia, where she served for nearly 20 years, most recently as the Criminal Division Chief. In that capacity, she supervised the prosecution of all criminal matters in federal district court. Ms. McCord also served for more than five years as a Deputy Chief in the Appellate Division, where she supervised and argued hundreds of cases in the U.S. and District of Columbia Courts of Appeals. Ms. McCord graduated from Georgetown University Law School, and clerked for Judge Thomas Hogan of the U.S. District Court for the District of Columbia.