Roelof Temmingh is the Technical Director and a founding member of SensePost, a South African IT security assessment company. After completing his degree in electronic engineering, he worked for four years at a leading software engineering company, where he specialized in encryption devices and firewalls. In 2000 he started SensePost along with some of the country's leaders in IT security. Roelof heads SensePost's external security analysis team, and in his "spare time" plays with interesting concepts such as footprint and Web application automation, worm propagation techniques, covert channels/Trojans, and cyber-warfare. Roelof is a regular speaker/trainer at international conferences, including the Black Hat Briefings, Def Con, RSA, FIRST, and Summercon.