I recently discovered a working paper published by the Cloud Security Alliance (CSA) sponsored by Hewlett Packard addressing the top threats of cloud computing.
Feedback to my previous Commentary on cloud computing often surrounds risk management decisions when considering such services. Concerns of cloud computing often include security of sensitive data stored in the cloud, reliability and accessibility to cloud services (i.e. how much uptime is promised), and integration capabilities with other cloud- or desktop-based business applications.
The CSA's paper titled Top Threats of Cloud Computing does a great job of identifying seven potential threats that exist when on-demand services are used. The threats are:
What's nice about the CSA's paper is that each threat is explained in one page along with examples, remediation, references, and impact. It provides an excellent overview of the steps advisors should take when considering (or continuing) the use of cloud computing.