Weird how some people always target open-source in AI! First it was: “Open-source AI will destroy the world” (spoiler: it didn't and it won'…

Weird how some people always target open-source in AI! First it was: “Open-source AI will destroy the world” (spoiler: it didn't and it won't) Now: “Open-source is a cybersecurity threat because of AI” Both narratives are far too simplistic. The truth is that the exact same risks exist in closed-source systems, often even more so. For example, in practice, APIs can create much bigger data and security vulnerabilities than open systems you can inspect, self-host, and secure yourself. And as with software more broadly, open-source often ends up more secure because it benefits from far more scrutiny than private internal systems. The reality is not “open vs closed.” The reality is that AI is raising cybersecurity stakes across the board, and we need to tackle that seriously together.

New post: We tested the Mythos showcase vulnerabilities with open models. They recovered similar scoped analysis! 8/8 models found the flags…
'But here is what we found when we tested: We took the specific vulnerabilities Anthropic showcases in their announcement, isolated the rele…
ok i read the cyber part of the mythos model card. some thoughts. 250 'trials' across 50 crash categories but almost every full exploit is a…
Marcus Hutchins, the guy famous for stopping the WannaCry Ransomware, probably has the best take on Mythos doing vulnerability research

Source: Yann LeCun (X) | 2026-04-15

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