Proton's CEO called a pentest request 'loser thinking', then cancelled AI re-interviews

Proton, the Swiss company known for encrypted email, has had a rough week over its internal AI push. According to a 404 Media investigation published October 29, CEO Andy Yen answered an employee who asked for a few days of penetration testing before new code went live by calling the idea "loser thinking" in the company's security channel. A day after the story ran, Yen cancelled the re-interviews that were meant to question staff on their use of AI.

What this is about

Plenty of companies use AI to write code now, and that alone is not news. Proton is different because of what it sells. Users pay it to protect their email, passwords and files. A penetration test is like asking an expert to try to break a new lock before you install it. A safe maker that skips the trial to ship faster will not reassure its buyers. That is why this argument quickly moved from engineering speed to trust.

What the investigation found

404 Media says it spoke to eight current and one former employee and reviewed Slack chats, meeting recordings and an AI manifesto written by CTO Bart Butler. In the late-August exchange, Yen argued that speed and security can coexist and told the team to stop handcrafting code and use AI more.

The report lists other steps from recent months. An email address was set up so staff could report anything blocking AI adoption. Software was installed on work computers to track how much code comes from AI. Yen said this would be the last year Proton hires engineers as such, with future hires building through AI. An internal document says the company is behind its annual recurring revenue target, so the pressure has a commercial side as well as a technical one.

Employees describe a climate in which people hesitate to raise security worries. A Proton spokesperson did not dispute the reporting and said that in its determination to move fast the company had sometimes been too blunt or too slow in explaining itself.

How the re-interviews ended

Staff saw the planned re-interviews as a test of whether they would keep their jobs. A second 404 Media story on October 30 says Yen cancelled them during an all-hands meeting of about two hours, according to six current employees and leaked audio. Yen admitted a communication failure but said the AI push would continue, adding that the re-interviews had already served their purpose by getting people talking and learning.

Butler told staff that using AI well does not mean giving up on security or sound engineering, and said Yen's communication would improve. The manifesto had told engineers that their old jobs were gone. Yen also announced a reorganization for next month and said no jobs would be lost to AI.

What users are doing

404 Media reports that many users have attacked the leadership on social media and called for Yen to resign. Proton is owned by the Proton Foundation, whose board includes web inventor Tim Berners-Lee, and Yen said the board is watching closely. The rest of the first article is reserved for subscribers, so we could not read all of it, and some details are missing here.

There is no claim of a breach or a specific vulnerability at this point. The dispute concerns process: how much code gets reviewed, and how much weight a security engineer's objection carries. Users should watch whether Proton explains concretely how that process will change.

Sources: 404 Media: Investigation, 404 Media: Re-interviews cancelled