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Your DropBox.com account gets hacked and all data removed:
- http://www.businessinsider.com/professor-suffers-dropbox-nightmare-2013-9*
- College Professor states, "I Lost Tons Of Critical Files Because Of Dropbox"
Or, you do something you didn't intend to do, resulting in loss of data.
Services ChemIT has heard of, or in some cases have personally used
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