ChatGPT SearchOct 15, 2026
For a company's important documents, I'd start with Microsoft SharePoint + OneDrive for Business if your company already uses Microsoft 365. If you need more specialized security controls for sensitive files and external sharing, Box is also an excellent option.
The key is choosing a service that protects documents not just from hackers, but also from accidental sharing, compromised accounts, ransomware, and former employees retaining access.
My top recommendations
1. Microsoft SharePoint + OneDrive for Business
(Best overall for Microsoft 365 users)
Use SharePoint for shared company documents and OneDrive for individual work files. Microsoft provides encryption, multifactor authentication options, granular sharing controls, audit logs, retention policies, and recovery features. Some advanced protections require specific licenses and configuration.