Dean brings more than 25-years of combined IT and software engineering experience. He has worked in identity and security for almost 20-years with special emphasis given to Active Directory for the past 16 or so. Dean joined Microsoft back in 2008 where he took ownership of Windows Server Active Directory and various related identity-technologies such as AD LDS. Dean has delivered hundreds of technical presentations worldwide and is a commonplace & top-rated speaker at popular events such as TechEd, TechReady and The Experts Conference. Most recently, Dean joined Microsoft's "Assurance" engineering effort where he now owns security-related investments focused on hardening virtualization fabrics and shielded virtual machines.