"Are you certain (and when I say "certain", I mean not just speculating about how things were set up between LiveDrive and Backify) that LiveDrive are able to t

"Are you certain (and when I say "certain", I mean not just speculating about how things were set up between LiveDrive and Backify) that LiveDrive are able to tell, without a shadow of a doubt, which files belong to which Backify clients?" See: http://news.ycombinator.com/item?id=3242903 http://news.ycombinator.com/item?id=3242903