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.
AuditBoard - AuditBoard is a platform that offers compliance and audit management that allows auditors to analyze, manage, and report the business operations.
Dropbox - Online Sync and File Sharing
SAI360 - GRC Platforms
Google Drive - Access and sync your files anywhere
Fastpath Assure - Fastpath Assure is a cloud GRC platform that integrates with various ERP systems
Mega - Secure File Storage and collaboration