SciTech·Apr 19, 2026

🧠Anthropic Previews Claude Mythos, Triggers Fed-Treasury Bank Cyber Briefing

Anthropic Previews Claude Mythos, Triggers Fed-Treasury Ban…

TL;DR

Anthropic released Claude Mythos Preview, a model capable enough on offensive security benchmarks that the U.S.

Anthropic released Claude Mythos Preview, a model capable enough on offensive security benchmarks that the U.S. Treasury and Federal Reserve reportedly convened an emergency briefing with the heads of five major banks. Mythos solved 73% of expert CTF tasks and became the first model to fully complete 'The Last Ones' 32-step simulated corporate attack.

Anthropic Previews Claude Mythos, Triggers Fed-Treasury Bank Cyber Briefing

Key Points

1

73% pass rate on expert-level CTF tasks

2

First model to complete 'The Last Ones' 32-step attack

3

Treasury + Fed briefed big-bank CEOs in response

Why It Matters

Crosses a threshold in autonomous offensive cyber capability — expect rapid movement on AI export controls and disclosure rules.

AnthropicClaudecybersecurityAI-safety

Frequently Asked Questions

Why does this matter?

Crosses a threshold in autonomous offensive cyber capability — expect rapid movement on AI export controls and disclosure rules.

What happened?

Anthropic released Claude Mythos Preview, a model capable enough on offensive security benchmarks that the U.S.

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