zero-access encryption

Zero-access encryption is a security model where service providers cannot access user data because encryption keys are held exclusively by the user. On WindowsForum.com, discussions highlight Proton's Lumo AI chatbot, which employs zero-access encryption to ensure that even Proton cannot read user conversations. This approach contrasts with mainstream AI assistants like ChatGPT or Microsoft Copilot, which may have access to user data. The tag covers how zero-access encryption protects privacy in cloud-based services, particularly for Windows users concerned about data confidentiality. Topics include technical implementation, comparison with other encryption methods, and implications for enterprise IT and personal security.