Wouldn't it be easy to abuse all those free file-hosts?: encrypt data, upload encrypted data (to multiple different file-hosts; redundancy and all that), save download URL, download encrypted data, decrypt data; automatically occasionally checking that the uploaded data is still there, and if it's not, reuploading it (e.g. from one of the other file-hosts that the encrypted data was uploaded to)..
The data is encrypted (by different keys per uploadion, so a would-be cyberspy won't see that it's the same encrypted data uploaded multiple times, to multiple free file-hosts,,) (transferred via TOR), so it's not worth anything to a would-be cyberspy who might otherwise be willing to pay for it. (Unless he's a stupid would-be cyberspy who is willing to pay for useless, i.e. uninformative, data.)
(Why can't I VIP a new thread?)