Question: Looking for a file management system that can handle multiple categories and projects, with version history and secure encryption.

If you're looking for a powerful file management system with multiple categories and projects, version history and encryption, Dropbox is a good option. Dropbox offers features like protected file storage with version history, password protection and watermarking. It also offers tools for engagement tracking and permission management, PDF editing and video feedback. Dropbox uses 256-bit AES and SSL/TLS encryption to protect your files, and it offers real-time document analytics. With several pricing tiers, including Business plans for teams, Dropbox can accommodate a range of needs.

Another option is TheBrain, a digital workspace that houses files and ideas with a scalable and secure architecture. It can be used for AI-powered brainstorming, visual collaboration and file management with version history. The system synchronizes data across devices with military-grade AES 256-bit encryption and offers a free version with the option to upgrade to Pro for personal use or team collaboration.

For enterprise-level needs, M-Files offers a metadata-based document management system with AI capabilities. It's geared for midsize and enterprise companies, with automated workflows, security and compliance. M-Files integrates with Microsoft Office 365 and Teams for a full-featured option for managing and automating document processes across many industries.

Last, Egnyte is a cloud-based platform that combines AI-powered features for managing, securing and governing digital content. It offers industry-specific solutions and integrates with common tools like Microsoft, Google and Salesforce. Egnyte's features include insider risk management, ransomware detection and content lifecycle management, making it a good option for secure and efficient file management and collaboration.