Joanna Rutkowska is a security researcher known for picking apart the security mechanisms built into Windows. She will be running a training session called “Understanding Stealth Malware” during the Black Hat Briefings and Training event in Las Vegas. The training session promises to demonstrate new rootkits developed for Vista, ways of defeating hardware-based forensics systems and other techniques Microsoft would probably prefer the world didnt know. She recently uncovered a number of flaws in Vistas much-hyped UAC feature.”]