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Privacy Tip #453 – Proton Launches Encrypted AI Assistant

By Linn Foster Freedman on July 31, 2025
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Proton AG, a Swiss company that “decided to build a better internet where privacy is the default,” and desires to “build an internet that puts people before profits, create a world where everyone is in control of their digital lives, and make digital freedom a reality,” has launched an AI tool “where every conversation is confidential.”

The AI assistant, dubbed Lumo, is “putting people and privacy first.” According to Proton, Lumo does not keep logs, deletes all logs of chats, does not share data, data is not used to train AI, and every chat is encrypted, so it “keeps your conversations confidential and your data fully under your control—never shared, sold, or stolen.” Proton states that Lumo was “built around privacy, security, and transparency.”

I have no idea if these statements are true—I have never used Lumo. That said, it is intriguing that Lumo is owned by the nonprofit Proton Foundation. Another intriguing claim is its self-comparison with other “leading AI assistants,” and its features that are “designed for privacy.”

Lumo is free and available for Android and iOS devices. It is one of the first, if not the first, AI assistant that touts privacy, so I am going to check it out now.

Photo of Linn Foster Freedman Linn Foster Freedman

Linn Freedman practices in data privacy and security law, cybersecurity, and complex litigation. She is a member of the Business Litigation Group and the Financial Services Cyber-Compliance Team, and chair’s the firm’s Data Privacy and Security Team. Linn focuses her practice on…

Linn Freedman practices in data privacy and security law, cybersecurity, and complex litigation. She is a member of the Business Litigation Group and the Financial Services Cyber-Compliance Team, and chair’s the firm’s Data Privacy and Security Team. Linn focuses her practice on compliance with all state and federal privacy and security laws and regulations. She counsels a range of public and private clients from industries such as construction, education, health care, insurance, manufacturing, real estate, utilities and critical infrastructure, marine and charitable organizations, on state and federal data privacy and security investigations, as well as emergency data breach response and mitigation. Linn is an Adjunct Professor of the Practice of Cybersecurity at Brown University and an Adjunct Professor of Law at Roger Williams University School of Law.  Prior to joining the firm, Linn served as assistant attorney general and deputy chief of the Civil Division of the Attorney General’s Office for the State of Rhode Island. She earned her J.D. from Loyola University School of Law and her B.A., with honors, in American Studies from Newcomb College of Tulane University. She is admitted to practice law in Massachusetts and Rhode Island. Read her full rc.com bio here.

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  • Posted in:
    Intellectual Property
  • Blog:
    Data Privacy + Cybersecurity Insider
  • Organization:
    Robinson & Cole LLP
  • Article: View Original Source

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