Proton’s AI Push Sparks Internal Backlash as CEO Dismisses Security Testing as ‘Loser Thinking’

Proton, the Swiss company best known for its encrypted email service, is facing an internal reckoning over its aggressive pivot to artificial intelligence — and employees say the company’s own CEO is the one driving the culture of fear. A new investigation by 404 Media, based on interviews with eight current and one former Proton employee plus internal Slack chats, meeting recordings, and a company manifesto, paints a picture of a privacy champion that is now barreling into AI at full speed — sometimes, critics say, at the expense of the security that made it famous. At the center of the controversy is CEO Andy Yen, a former CERN particle physicist. In an internal exchange at the end of August, a security employee urged the company to take a few days to penetration-test newly written code before pushing it live. Yen’s reply was blunt: “That’s bullshit and loser thinking.

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