Microsoft recently finished its most recent invitation-only BlueHat conference. While typically not much information leaks out about the happenings at the conference the company did release a little information about what took place this year. Over at the TechNet site you'll find a page that shows who the presenters were along with a brief summary of what their talks were about. Topics this year included coverage of Skypes obsfuction mechanisms, wireless driver vulnerabilities, and the ever increasing sophistication of viruses, which today can to some amount of vulnerabilities analysis and intercommunicate with other viruses. Also discussed was virtual machine rootkit technology, which I wrote about in a previous blog article, " Bitter News For VM Users, There's a Rootkit Made Just For You .