Paul Wouters has been involved with Linux networking and security since he co-founded the Dutch ISP 'Xtended Internet' back in 1996, where he started working with FreeS/WAN IPsec in 1999 and with DNSSEC for the .nl domain in 2001.
He has been writing since 1997, when his first article about network security was published in LinuxJournal in 1997. Since then, he has written mostly for the Dutch spin-off of the German 'c't magazine', focusing on Linux, networking and the impact of the digital world on society.
He has presented papers at SANS, OSA, CCC, HAL, Blackhat and Defcon, and several other smaller conferences.
He started working for Xelerance in 2003, focusing on IPsec, DNSSEC, Radius and delivering trainings.