Code4rena

After 5 years of securing DeFi, Code4rena is closing its doors. Active competitions and bounties are being seen through to completion.

What it does

Sherlock
The leading web3 audit platform — private audits, contests, AI analysis, and bug bounties. 1000+ audits, $250B+ TVL protected and 11,000+ security researchers.
Octane Security
Find exploitable vulnerabilities missed by manual code review and security scanners. Octane’s AI-native application security traces real attack paths across your codebase.
Cantina
The community-driven agentic security platform that closes every security loop, from first discovery to verified fix.
OpenZeppelin
OpenZeppelin is the security standard for onchain finance: the smart contracts, standards, and security services behind the industry's most critical systems.