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Hacker Nets $70K at Pwn2Own; Claude Mythos Spots 1,600 Flaws

5/27/2026

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Summary

Story summary

Valentina Palmiotti (Chompie) won $20,000 by hacking an Nvidia-linked system and $50,000 by breaching a Linux system at Pwn2Own in Berlin.
Anthropic says Claude Mythos has found 1,600 vulnerabilities and is limited to select governments and security agencies.
Palmiotti said AI tools like Claude Code now aid her IBM X-Force work and predict Claude Mythos and GPT 5.5 Cyber will remove most low-hanging-fruit for human researchers.

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Story summary

Valentina Palmiotti (Chompie) won $20,000 by hacking an Nvidia-linked system and $50,000 by breaching a Linux system at Pwn2Own in Berlin.
Anthropic says Claude Mythos has found 1,600 vulnerabilities and is limited to select governments and security agencies.
Palmiotti said AI tools like Claude Code now aid her IBM X-Force work and predict Claude Mythos and GPT 5.5 Cyber will remove most low-hanging-fruit for human researchers.