John Haller is an SEI alumni employee.

John Haller is a member of the technical staff on the Cybersecurity Assurance team within the CERT® Division at the Software Engineering Institute (SEI), a unit of Carnegie Mellon University in Pittsburgh, PA. As a member of this team, Haller performs research on critical infrastructure protection, focusing on methods, tools and techniques for managing external dependency and third party risk. Prior to joining CERT in 2010, Haller was analyzing cybercrime attacks on the financial industry in collaboration with a U.S. law enforcement agency. Haller, a U.S. Army veteran, received his Juris Doctor (cum laude) and Master in Public and Internationaal Affairs from the University of Pittsburgh and is also a Certified Information Systems Security Professional (CISSP).