David started his career in computer security working in the United States Air Force, serving the Air Intelligence Agency and the Air Force Computer Emergency Response Team (AFCERT). While working as an incident response team lead for the AFCERT, David was the first person to have hackers apprehended by law enforcement in three separate security incidents. David is a serial start-up junkie having worked with 6 start-ups since the late 1990s. In 2012, David was responsible for the apprehension of a fourth attacker who was stealing Smart Grid technology from a US utility company. In 2018, David joined NSS Labs where he held a number of roles including principal researcher/architect. In November of 2020, David joined Noname Security as employee #3 in the US and leads the worldwide team of Solution Architects.