Lumo privacy and security model

Lumo is an AI assistant for people who care about privacy. Whether you’re drafting emails, solving technical problems, or simply looking for answers, Lumo helps you get more done without compromising your data. Powered by open-source language models and built on Proton’s zero-access encryption, Lumo offers a secure alternative to mainstream AI tools.

Let’s explore the architecture behind Lumo’s privacy-first design and the features that make it a trustworthy choice for private, encrypted AI conversations.

As data breaches and privacy invasions proliferate, ensuring the confidentiality of large language models becomes not just a technical challenge, but an ethical imperative. People go to AI assistants for help with sensitive issues, from medical conditions to confidential business matters. They should be able to share this kind of information without fearing that their data will train language models, be exploited by Big Tech companies or governments, or leaked in a data breach.

At Proton, we build products with privacy by design, and Lumo is no exception. Individuals and organizations should be able to use AI with confidence, knowing their most sensitive information remains protected.

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