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.
Acronis Backup and Recovery - Acronis Backup is a data recovery solution that offers more ways of storing and recovering drives, folders and files as compared to other similar solutions.
Dropbox - Online Sync and File Sharing
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Google Drive - Access and sync your files anywhere
Backup Exec - Backup Exec provides simple, complete backup and recovery protection for your business, to cover all data wherever it resides. Try free for 60 days.
Mega - Secure File Storage and collaboration