“Dropbox is a service that lets you bring all your photos, docs, and videos anywhere, and share them easily. Any file you save to your Dropbox will automatically save to all your computers, your phone or iPad, and the Dropbox website.” – Taken from the Dropbox website.
This makes dropbox a very convenient tool to not only share holiday pictures, but also aid in (international) cooperation in research matters. Would you share research documents using the dropbox service in the cloud? Amongst many, this article shows that dropbox is insecure by design. If any part of the files shared by the service is confidential, it shows that dropbox software is not suitable for this purpose due to security reasons.