Guillaume Thiaux is a security consultant with Trustwave's Spiderlabs in Sydney. Originally interested by UNIX, virtualization and system development, he joined EADS to work on operating system hardening. There he worked on defence contracts as well as research and development to produce state of the art multi-level platforms. Securing systems was fun but not as much as playing the on offensive side, so after a few years, he joined the HSC, a renowned French security consulting company. Besides penetration testing, code review, and forensics assignments, he was teaching both FOR510 and SEC660. When not behind a computer, he enjoys travelling the world.