Nathaniel Gleicher is a prominent cybersecurity expert currently serving as the Director and Head of Security Policy at Meta since January 2018, where responsibilities include countering security threats and protecting elections from foreign interference. Concurrently, Nathaniel functions as a Senior Associate at the Center for Strategic and International Studies. Previous roles encompass leading cybersecurity strategy at Illumio, directing cybersecurity policy for the National Security Council at the White House, and serving as Senior Counsel in the U.S. Department of Justice's Criminal Division. Earlier experience includes advising the South Korean government as a Luce Scholar and teaching computer science in the Peace Corps. Nathaniel Gleicher holds a Juris Doctor from Yale Law School and a Bachelor of Science in Computer Science from the University of Chicago.