This is an interview session with Joanna Rutkowska, a person who hacked the Windows Vista kernel.
Last year, I attended her presentation about Subverting Vista Kernel For Fun and Profit at HITBSecConf2006. She shows how to bypass Windows Vista Kernel using BluePills tool. She is one of the researchers who found vulnerability on Vista. You can refer here to get a slide about her Vista presentation at HITBSecConf2006. You also can refer to her blog about her latest research: