Well, here's an interesting little tidbit for those that use Dropbox to store or share files.
We have all seen documents getting leaked out of large organisations to the public, and invariably said company usually get's the documents removed for legal reasons from wherever they are being hosted. In fact, after the supposed presentation about the XBOX 720 leaking, we saw it being removed from Scridb.com at the request of Covington & Burling LLP which is a firm known to have dealings with Microsoft.
None of that is surprising, but today Windows Phone Centrals Daniel Rubino sent me a certain document via Dropbox so that I could take a look at it. However, trying to download the file just returns the image you can see above. This was not a link shared publically, but yet, it was removed seemingly automatically.
That begs the question, do storage companies analyze your files' content as you upload them? They no doubt have a clause in their terms that allows them to do just that, but it is another thing actually seeing it used.
Moral of the story? Don't use commercial cloud storage to share secret files.