Christophe Paggen is a technical marketing engineer at Cisco focusing on high-end firewalls. He has a degree in computer science from IESSL in Liege and a masters in economics from University of Mons-Hainaut.
Eric Vyncke works as a Distinguished Consulting Engineer for Cisco. Eric wrote the security section of Networks: Internet, Telephony, Multimedia: Convergences and Complementarities (Springler Verlag, 2003), and has a Master Degree in Computer Science Engineering from the University of Liège.