Quoting from InformationWeek:
In March, Gartner ignited the blogosphere by stating the obvious: Virtualization creates new attack opportunities.
…
Just how risk-exposed are we today? After all, in that same report Gartner predicted that a patch-worthy hypervisor vulnerability would be discovered in a mainstream product before the end of 2008. These potential vulnerabilities fall into two broad categories. First, if you can escape a client OS and move into a host OS, you have access to the data on all the other client operating systems on that machine. And there are whole new realms of rootkits being designed to take advantage of virtualization technology…
Read the whole article at the source.
The virtualization.info Virtualization Industry Prediction has been updated accordingly.