Cybersecurity Looks Like Proof of Work Now

Is security spending more tokens than your attacker?

Apr 14, 2026 AI DEVELOPMENT SECURITY MYTHOS Cybersecurity Looks Like Proof of Work Now Is security spending more tokens than your attacker? Last week we learned about Anthropic’s Mythos, a new LLM so “ strikingly capable at computer security tasks ” that Anthropic didn’t release it publicly. Instead, only critical software makers have been granted access , providing them time to harden their systems. We quickly blew through our standard stages of processing big AI claims: shock, existential fear, hype, skepticism, criticism, and (finally) moving onto the next thing. I encouraged people to take

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• Cheikh Fiteni
• Jackson Mowatt Gok
• Aadharsh Pannirselvam

related reading

• Assessing Claude Mythos Preview’s cybersecurity capabilities \ Anthropicred.anthropic.com
• Project Glasswing: Securing critical software for the AI era \ Anthropicanthropic.com
• Is Mythos good at cyber because it kept hacking Anthropic's sandboxes during training? — LessWronglesswrong.com
• Vulnerability Research Is Cooked - Quarrelsomesockpuppet.org
• The End-State Fallacy: Where Is AI Security Headed?endstatefallacy.com
• Discovering cryptographic weaknesses with Claude \ Anthropicanthropic.com
• Countering misuse of AI: September 2026 / Anthropicanthropic.com
• Disrupting the first reported AI-orchestrated cyber espionage campaign \ Anthropicanthropic.com
• My picture of the present in AI — LessWronglesswrong.com
• What I learned this week - Can distillation be stopped, Mythos and the cybersecurity equilibrium, Pipeline RLdwarkesh.com
• Mythos finds a curl vulnerability | daniel.haxx.sedaniel.haxx.se
• Measuring LLMs’ ability to develop exploits \ Anthropicred.anthropic.com