We often focus on the technological security issues of cloud computing.  We should also be thinking about physical security.  I've set foot in many datacenters, some of which featured impressive physical security measures (armed guards, series of entry barriers, etc).  Others have been lacking in comparison.

Too often, companies fail to do their due diligence on physical security when choosing a cloud provider.  Some questions to ask:  does your provider have 24/7 armed security (and how many guards), access control systems/procedures, number of independent power sources, fire supression systems, etc.

It happened sooner than I thought.  A cloud provider caught in an unwinable situation.   Amazon this week hosted, and then unhosted, Wikileaks.   On a technical level, experts questions whether AWS could handle distributed denial of service attacks.    Social media users shared the "close your Amazon account" link -- Amazon lost customers and its good image to a portion of  their customers.   Many who support Amazon are still wary of the government pressure to remove.

You can envision other scenarios...hackers using cloud computing power to hack passwords or servers, to power DOS attacks, to power sites some find offensive.    Wikileaks forces cloud providers to confront a host of unwanted legal, political and media issues.

The removal of Wikileaks from AWS had little effect, the site is mirrored on dozens of site, and Wikileaks is successfully using Twitter to broadcast its message along with links to such mirrors.   If anything,  we saw the Barbara Streisand effect yet again.