Marc is a whitehat hacker who has worked in the security industry for almost twenty years, including a decade managing security in the UK operator Vodafone, and five years as CSO for a real estate and asset management conglomerate in South Korea. Marc sees himself as a security evangelist, who has a positive outlook on how security should be implemented in today’s global organizations. It's this outlook that Marc used when he helped put together the award winning BBC series "The Real Hustle".

Marc is also the Head of Security at DEF CON, the world’s largest Hacker conference.