Proton senior management prioritizes AI over security

Why it matters

An investigation by 404 Media, drawing on current and former Proton employees, internal documents, Slack chats, and meeting audio, reported that Proton moved from banning AI tools internally to approving them for most of the code written at the company. CTO Bart Butler told staff that nearly all code was AI-written, and employees said much of it is produced with Anthropic's Claude, with chief executive Andy Yen pushing its use in Slack. The report described tension over security: when staff urged pentesting newly written code before deployment, Yen dismissed the concern, and some employees said they felt unable to raise such issues. Butler also posted an internal manifesto telling engineers their old jobs were gone. After the investigation was published, Proton cancelled planned re-interviews that a leaked email had linked to continued employment. The story matters because Proton markets itself on privacy and security, and its internal development practices bear directly on how customer data is handled.