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.
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
Dropbox - Online Sync and File Sharing
Google Cloud Platform Security Overview - Cloud Workload Protection Platforms
Google Drive - Access and sync your files anywhere
Nutanix Beam - Nutanix Beam is a multi-cloud optimization service
Mega - Secure File Storage and collaboration