Bug Bounty And Vuln HuntingVuln Item

Pwn2Own AI plus human entries and Anthropic token looping on Firefox

April 4, 2026s1r1us

s1r1us says Pwn2Own is notable this year for AI plus human entries, and claims Anthropic ran Claude in a loop on Firefox for a month to find something, signaling heavy LLM driven vuln discovery experimentation.

this year's pwn2own isn't just interesting because there will be lots of entries with AI+human.
it is also interesting because
a) anthropic burned a ton of tokens on firefox, basically running claude in a loop until it found something for a month
s1r1us
pwn2ownvulnerability researchautomationclaudellm driven

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