Of course, the speakers making these great claims for cloud security are executives in – what else? – top cloud provider companies, so they would say that, wouldn’t they? But that doesn’t necessarily mean they don’t have a point. Read their reasons and decide what you think.
http://searchcloudsecurity.techtarget.com/news/2240210473/Providers-at-2013-CSA-Congress-tout-cloud-security-over-traditional-IT