The nature of cloud computing — including the ability for multiple entities to access shared resources and the use of multiple locations across low cost regions — can create data security and privacy issues. (slaw.ca)
That could undermine the entire underlying philosophy, of allowing transactions between multiple entities that do not know each other. (businessjournalism.org)
Here the novelty is that for the first time you can easily create a system where multiple entities have shared control over the evolution of data. (bitsonblocks.net)