Vittorio Bertocci is principal program manager on the Azure Active Directory team, where he works on the developer experience: Active Directory Authentication  Library (ADAL), OpenID Connect and OAuth2 OWIN components in ASP.NET, Azure AD  integration in various Visual Studio work streams, and other things he can’t tell you about (yet). Vittorio joined the product team after years as a virtual member in his role as principal architect evangelist, during which time he contributed to the inception and launch of Microsoft’s claims-based platform components (Windows Identity Foundation, ADFS 2.0) and owned SaaS and identity evangelism for the .NET developers community.   Vittorio holds a Master's degree in computer science and began his career doing research on computational geometry and scientific visualization. In 2001 he joined Microsoft Italy, where he focused on the .NET platform and the nascent field of web services security, becoming a recognized expert at the national and European level. Vittorio is easy to spot at conferences. He has spoken about identity in 23 countries on four continents, from keynote addresses to one-on-one meetings with customers. Vittorio is a regular speaker at Ignite, Build, Microsoft PDC, TechEd (US, Europe, Australia, New Zealand, Japan), TechDays, Gartner Summit, European Identity Conference, IDWorld, OreDev, NDC, IASA, Basta, and many others. At the moment his Channel 9 speaker page at https://channel9.msdn.com/events/speakers/vittorio-bertocci lists 44 recordings.   Vittorio is a published author, both in the academic and industry worlds, and has written many articles and papers. He is the author of Programming Windows Identity Foundation (Microsoft Press, 2010) and coauthor of "A Guide to Claims-Based Identity and Access Control" (Microsoft patterns & practices, 2010) and Understanding Windows Cardspace (Addison-Wesley, 2008). He is a prominent authority and blogger on identity, Azure, .NET development, and related topics: he shares his thoughts at www.cloudidentity.com and via his twitter feed, http://www.twitter.com/vibronet.   Vittorio lives in the lush green of Redmond with his wife, Iwona. He doesn’t mind the gray skies too much, but every time he has half a chance, he flies to some place on the beach, be it the South Pacific or Camogli, his home town in Italy.