The Cloud is one of the “new big things” in IT and security and I hate it.  To be clear, I don’t actually hate the concept of The Cloud (I’ll get to that in a minute) but, rather, I hate the term. According to Wikipedia, cloud computing is “the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility (like the electricity grid) over a network (typically the Internet).”  What this pretty much amounts to is outsourcing.  There are a lot of reasons that people “move to The Cloud” and I’m not really going to dive into them all; suffice it to say that it comes down to cost and the efficiencies that Cloud providers are able to leverage typically allow them to operate at lower cost than most organizations would spend accomplishing the same task.  Who doesn’t like better efficiency and cost savings? But what is cloud computing really?  Some people use the term to refer to infrastructure as a service (IaaS), or an environment that is sitting on someone else’s servers; typically, the environment is virtualized and dynamically scalable (remember that whole efficiency / cost savings thing).  A good example of an IaaS provider is Amazon Web Services.  Software as a service (SaaS) is also a common and not particularly new concept that leverages the concept of The Cloud.  There are literally thousands of SaaS providers but some of the better known ones are and Google Apps.  Platform as a Service (PaaS) is less well-known term but the concept is familiar: PaaS providers the building blocks for hosted custom applications.  Often, PaaS and IaaS solutions are integrated.  An example of a PaaS provider is  The Private Cloud is also generating some buzz with packages such as Vblock, and OpenStack; really, these are just virtualized infrastructures. I’m currently at the Hacker Halted 2011 conference in Miami (a fledgling but well-organized event) and one of the presentation tracks is dedicated to The Cloud.  There have been some good presentations but both presenters and audience members have struggled a bit with defining what they mean by The Cloud.  One presenter stated that “if virtualization is involved, it is usually considered to be a cloud.”  If we’re already calling it virtualization, why do we also need to call it The Cloud? To be fair, The Cloud is an appropriate term in some ways because it represents the nebulous boundaries of modern IT environments.  No longer is an organization’s IT infrastructure bound by company-owned walls; it is an amalgamation of company and third party managed party services, networks, and applications.  Even so, The Cloud is too much of a vague marketing term for my taste.  Rather than lumping every Internet-based service together in a generic bucket, we should say what we really mean.  Achieving good security and compliance is already difficult within traditional corporate environments.  Let’s at least all agree to speak the same language.