How Claude Mythos Found 271 Firefox Vulnerabilities
May 19, 2026
Claude Mythos Preview found 271 Firefox security flaws in one pass. Firefox 150 patched them on April 21, 2026. Here is how Mozilla's AI pipeline did it.
#claude-mythos
Trump's FDA-Style AI Order: 2026 Mythos Policy Reversal
May 9, 2026
Trump's White House is drafting an FDA-style executive order to vet AI models before public release after Anthropic's Mythos found thousands of zero-days.
GPT-5.5 Cyber Eval: AISI Finds Parity with Mythos 2026
May 8, 2026
UK AI Security Institute's April 30 GPT-5.5 cyber eval reveals parity with Claude Mythos on expert CTF tasks and the 32-step Last Ones attack range.
AISI Claude Mythos Eval: AI Owns 32-Step Network Attack
April 14, 2026
The UK AI Security Institute's Claude Mythos evaluation: 73% on expert CTFs, first model to autonomously complete a 32-step enterprise network attack.
AI Cybersecurity's Jagged Frontier: Small Models vs Mythos
April 12, 2026
AISLE tested 25+ AI models against Mythos's showcase vulnerabilities. A 3.6B model found the same FreeBSD flaw. Here is what the jagged frontier means.
Claude Mythos Preview: The AI Too Dangerous to Release
April 11, 2026
Anthropic's Claude Mythos Preview found a 27-year-old OpenBSD bug and thousands of zero-days. Here is why this AI model is too dangerous to release publicly.
Anthropic Claude Mythos Leak 2026: What We Know
March 28, 2026
Anthropic's Claude Mythos model leaked via a CMS misconfiguration, revealing a new Capybara tier with advanced cyber capabilities that rattled markets.