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 Cyber Protect Home Office - (Formerly Acronis True Image) Complete protection for your digital life
Dropbox - Online Sync and File Sharing
rsync - rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.
Google Drive - Access and sync your files anywhere
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Mega - Secure File Storage and collaboration