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.
OneLogin - On-demand SSO, directory integration, user provisioning and more
Dropbox - Online Sync and File Sharing
Okta - Enterprise-grade identity management for all your apps, users & devices
Google Drive - Access and sync your files anywhere
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Mega - Secure File Storage and collaboration