Virtualization Threats Ahead

This is exactly a point I've been trying (and failing) to express clearly of late. From How 9 Hot Technologies Can Blow Up In Your Face on InformationWeek.

If organizations keep expanding server virtualization without taking into account what makes virtual machines different from physical ones, they'll open new doors for intruders into the data center. We can't identify the precise nature of the threats, because they haven't yet materialized. But anyone who takes comfort in that fact hasn't been paying attention to information security the past couple of years.