"We put our files in the cloud to make things easier – we can access them anywhere and it’s our cloud storage provider’s job to keep them safe, not ours. But it doesn’t matter how reliable a cloud storage service is if you delete a file from your cloud drive and want it back later. Luckily, there are several ways you can restore deleted data.
None of these methods are completely foolproof. Cloud storage services like Dropbox, Google Drive, and Skydrive aren’t backup solutions, and they don’t keep deleted files around forever..."