Rich Stiennon is a long-time Industry Analyst and Author of Secure Industry Analyst: The Cio's Journey. One of the key points of the book is that businesses are currently in the midst of transitioning to Office 365 for email and Office tools. In the book, Stiennon explores journey of 16 leading enterprises around the world including Schneider, GE, Fannie Mae, Siemens, Google, Microsoft, and Amazon. Our discussion explores how the adoption of SaaS applications becomes a starting point for technological trannsformation, and how Office365 has had the most dramatic impact on enterprise IT infrastructure in decades. We explore how networks are impacted by this transition, and most importantly how the paradigm of security itself is changing, and actually improving.