That's Cloud Storage System but what about App that is powered by the Cloud
Most likely, Google will come into the picture.
These guys will use Distributed Share Memory. Meaning, all application that's hosted by them will "share" memory like "share" cpu. A hacker can simply purchase a plan to host their app and easily tap into DSM. By default, they can "only" see the memory they manage...however... I don't think it's out of range to steal other info in the memory space w/ hacks.... of course I don't know how to do that x:x But in theory, this sounds very doable to me.
Of course, I'm not saying Cloud is bad as it saves tons of $$$$, immediate scalability, low maintainance, and etc... but people forgets about security risks. You know I won't be surprise that these cloud hosts have the ability to "remote" access the virtual machine..... this creates huge chance of being "pwnage" by the hackers