Eoyang serves as the deputy assistant secretary for cyber policy in the Department of Defense. Previously, she served as senior vice president for the National Security Program at Third Way, as chief of staff to U.S. Rep. Anna Eshoo and as defense policy adviser to U.S. Sen. Ted Kennedy. She has also worked on the House Permanent Select Committee on Intelligence and House Armed Services Committee. Eoyang is also the founder of Cyber Enforcement Initiative.