 Subsequently, she worked as a senior security strategist at Microsoft in the Security Engineering and Communications group.During this time, she was a contributor to the Security Design Lifecycle (SDL) and co-developed a new methodology for threat modeling software, as well as acting as security lead and signoff on Microsoft Windows XP Service Pack 2 and Windows Server 2003.She also created the Blue Hat Microsoft Hacker Conference, an event bringing together engineers at Microsoft and hackers for a dialogue about the security of Microsoft’s software.