Hi there,
I recently upgraded my Mac Operating system, and I have just seen that all my files in my dropbox account have been wiped. I have tried looking in the deleted files section on the browser app and nothing, I also checked and dropbox should have notified me if a large number of files were being deleted this has not happened. I last accessed my files around the end of November and my computer was updated in mid December.
I'm very concerned about this.