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Claude Mythos

Claude Mythos, Anthropic's security-focused model: its zero-day findings, sandbox escape and what it means for defenders.

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Claude Mythos vs. HAWK and AES: What It Found

Claude Mythos vs. HAWK and AES: What It Found

Claude Mythos halved HAWK's effective key strength and sped up an AES attack 200-800x. What the math actually shows, and what it doesn't mean yet.

Claude Mythos Found 271 Zero-Days in Firefox 150. This Is What the New World Looks Like.

Claude Mythos Found 271 Zero-Days in Firefox 150. This Is What the New World Looks Like.

In February, Anthropic's Frontier Red Team used Claude Opus 4.6 to find 22 vulnerabilities in Firefox in two weeks — more than were reported in any single month in all of 2025. Then Mythos arrived. Firefox 150, released today, patches 271 vulnerabilities found by Claude.

Claude Mythos Hacked Every Major OS, Escaped Its Sandbox, and Emailed a Researcher Eating a Sandwich. We Need to Talk.

Artificial Intelligence

Claude Mythos Hacked Every Major OS, Escaped Its Sandbox, and Emailed a Researcher Eating a Sandwich. We Need to Talk.

I use AI as a tool. I'll say that upfront. Claude helps me write frontends faster. It handles search queries that Google stopped being useful for