The National Security Agency (NSA) on Friday announced the appointment of Timothy Kosiba as its 21st Deputy Director. The appointment, designated by Secretary of War Pete Hegseth and Director of National Intelligence Tulsi Gabbard, has received formal approval from President Donald J. Trump.
Kosiba, a veteran of the Intelligence Community with over 30 years of federal service, returns to the agency as its most senior civilian leader.
“Tim is a people-focused leader with a wealth of experience that makes him perfect for the deputy director role,” said LTG William J. Hartman, Acting Commander, U.S. Cyber Command; Performing Duties of Director NSA, and Chief, Central Security Service (CSS). “I am confident that Tim will continue to drive and guide us in our critical foreign signals intelligence and cybersecurity missions.”
Kosiba’s career is deeply rooted in the technical and operational evolution of U.S. cyber capabilities. He began his tenure at the NSA as the technical director for the Joint Functional Component Command for Network Warfare. He later served as the technical director for the Requirements and Targeting Office in the Tailored Access Operations organization (TAO).
Kosiba was selected for the Defense Intelligence Senior Level (DISL) Service position and was posted as chief of the Special US Liaison Office Canberra in Australia. Upon returning from Australia, he became deputy director of the NSA/CSS Commercial Solutions Center and was later appointed chief of Computer Network Operations (CNO). He was later assigned as the deputy commander of NSA Georgia, the largest of the NSA field locations.
Kosiba recently spent time in the private sector as a CEO and consultant.
