Recently I have had the pleasure of discussing security with a number of cloud providers. Specifically, we talked about what security they implement and how they inform their tenants of security-related issues. In other words, do they provide transparency? I have come to an early conclusion that there are two types of clouds out there:…
When we look at the secure hybrid cloud, the entry point to the hybrid cloud is the end user computing device, whether that device is a tablet, smart phone, desktop, laptop, google glass, watch, etc. We enter our hybrid cloud from this device. From there we spread out to other clouds within our control, clouds outside our control, or to data centers. How these devices authenticate and access the data within these various places within the hybrid cloud becomes a matter of great importance and has been a concentration for many companies. How we protect the data that ends up on the end user computing device is also of great importance.
The secure hybrid cloud encompasses a complex environment with a complex set of security requirements spanning the data center (or data closet), end user computing devices, and various cloud services. The entry point to the entire hybrid cloud is some form of End User Computing device whether that is a smart phone, tablet, laptop, or even a desktop computer. Once you enter the hybrid cloud, you may be taken to a cloud service or to your data center. The goal is to understand how the data flows through out this environment in order to properly secure it and therefore secure the hybrid cloud, but since it is a complex environment, we need a simpler way to view this environment.
I have written about the Public Cloud Reality and the need to bring your own security, monitoring, support. This was reinforced by Dave Asprey of Trend Micro at the last Cloud Security Alliance Summit held at this years RSA Conference. The gist of Dave Asprey’s talk was that YOU are responsible for the security of your data, not the cloud service provider.
As I met with people at RSA Conference last week, the common question was: What was interesting and new? My view was from the world of virtualization and cloud security, which often differs from general or mobile security. This show was more about general and mobile security than it was about virtualization and cloud security due to the confluence of VMware Partner Exchange (PEX) and RSA Conference. There were quite a few things that were new from the show floor, RSA Innovation Sandbox, and other conversations.
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Recently I discussed Virtualizing Business Critical Applications and security, which includes availability, confidentiality, and integrity. However, that discussion was more about visibility into the environment for security operations. I purposely left off the discussion of gaining integrity and confidentiality of the data housed within those business critical applications.
Is it possible to use a Cloud Framework to better secure your datacenter? Does cloud technologies provide a secure framework for building more than just clouds? We all know that virtualization is a building block to the cloud, but there may be a way to use cloud frameworks to first secure your datacenter before you launch a private, public, or hybrid cloud. In essence, we can use tools like vCloud Director to provide a more secure environment that properly segregates trustzones from one another while allowing specific accesses.
Storage Security is not only about Encryption, which is just one aspect of Storage Security requirements for the virtual and cloud environments. It is also about increasing defense in depth and knowledge of what is touching your storage environment. As well as providing security around those touch points and to a great extent auditing and protecting the data residing within the storage devices regardless of where the devices live: within the virtual environment or within a cloud.
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The 6/14 Virtualization Security Podcast we spoke about firewall placement within the virtual environment as well as storage based defense in depth. While we covered Encryption on the 5/31 podcast, in the 6/14 podcast we covered other measures when dealing with storage (which will be part of a followup post). This conversation was slightly different than all other firewall discussions, as it was about migrating from a physical environment to a virtual environment, and keeping the same firewall placements. Spurred by a customer, we sought to come to a set of guidelines to follow for defense in depth within the virtual as well as physical and hybrid cloud environments.