Tor got his first UNIX account at age 4, for consolation after burning his fingers on his father's soldering iron. He works as a cryptographer and security consultant for a security company in Oslo, Norway. 31C3 will be his 6th CCC. Tor got started with security after accidentally implementing a major security hole for a local student festival in 2001. Eventually he worked his way through a degree in mathematics, and later on a Ph.d. in cryptography. He has worked full-time in security since 2006, with everything from theoretical crypto protocols to hands-on penetration testing.