Today, everyone is talking cloud computing, but the issue of security continues to drive the conversation around corporate adoption. While it is obvious that startups have terrific benefit in public cloud use through scalability, it is equally obvious that Fortune 500 firms are not putting their crown jewels into someone else's hands. The result: the current public/private hybrid cloud - now omnipresent as the preferred cloud option. Clearly, in all of this history, security is front and center. For that reason alone, members will find this week's Special Letter to be of direct use.