Code4rena — Smart Contract Security Audit Competitions
Code4rena hosts competitive smart contract security audits where independent security researchers ('wardens') compete to find vulnerabilities in Web3 protocols. Prize pools range from $4,000 to $300,000+ in USDC per contest. Wardens earn rewards proportional to the severity and uniqueness of bugs they find. No minimum reputation required — beginners and experts compete on the same playing field. Active contests run continuously with multiple audits open at any time.
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