For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Carbonite - Unlimited online backup for one flat fee. Free trial, no credit card required.
Dropbox - Online Sync and File Sharing
PieSync - Seamless two-way sync between your CRM, marketing apps and Google in no time
Google Drive - Access and sync your files anywhere
Quest Software - Simplify IT management and spend less time on IT administration and more time on IT innovation. It’s time to rethink systems and information management.
Mega - Secure File Storage and collaboration