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.
Dropbox - Online Sync and File Sharing
Unit4 Business World - Unit4 Business World is a cloud ERP solution that enables service-centric organizations in the public and private sectors to gain a significant advantage over their peers.
Google Drive - Access and sync your files anywhere
Papaya Global - Papaya integrates your entire global workforce and payroll management onto a single global platform connecting you to a network of verified local vendors
Mega - Secure File Storage and collaboration
Workday - Workday is an on‑demand financial management and human capital management software solution.