Rob Lefferts leads the Enterprise and Security Program Management Team in the Windows & Devices Group at Microsoft. Rob is responsible for planning and delivering the Windows commercial experience, while at the same time ensuring that everyone that uses Windows is as safe and secure as possible. Prior to this role, Rob lead the Office Extensibility team, responsible for the Office platform across clients, servers and services, including O365 APIs, Add-Ins, Access and the end-to-end developer and app experience. Rob has been at Microsoft since 1997, and was part of the original core team for SharePoint Portal server. Rob holds a BS and MS from Carnegie Mellon in Pittsburgh, PA.