After 5 years of securing DeFi, Code4rena has closed its doors. Follow our ongoing security work at @zellic_io, @v12sec, & @zenith256.

Dark Forest
The Monetrix audit report is now live! Shoutout to the @monetrix_xyz team for their strong dedication to the highest security standards. Check out the full report below!👇
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The results of the $22,000 Monetrix audit competition are in! Congrats to everyone who submitted valid findings, especially to ABAIKUNANBAEV for their first-ever 1st place finish! Shoutout to @monetrix_xyz for their commitment to security, full list of winners below!
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🥇 First place: ABAIKUNANBAEV 🥈 Second place: @0xastronatey 🥉 Third place: 33-Way Tie!
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The @K2_Lend audit competition ends on May 26th! But, there's still time left to submit your findings for a share of the $135,000 prize pool!
The K2 Audit Competition STARTS NOW! Welcome @K2_Lend, a lending protocol on Stellar featuring pooled, isolated, and gated lending markets. This competition will run for 40 days with the biggest prizes reserved for the most unique + severe vulnerabilities. Audit docs below!👇
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The Olas audit report is now published! Huge shoutout to the @autonolas team for their strong dedication to upholding the highest security standards. Check out the full report below.👇
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🤝
Today, we're announcing that Immunefi is partnering with @code4rena to onboard their bug bounty customers to our platform following Code4rena's decision to wind down operations. Code4rena played a huge role in shaping crypto security, and they deserve real recognition. As they wind down, our focus is to make sure every protocol continues to receive top-tier security. We're working hand-in-hand with the Code4rena team to make the transition as smooth as possible. Protocol teams onboarding to Immunefi will get: * Access to the largest and most elite whitehat community in crypto * Professional triage and mediation, battle-tested across $135M in bounties paid * Dedicated migration support to port over scope, rules, and reward structures And to every C4 warden: we want you here. You've been the backbone of one of the most respected security communities in crypto, and your work has made this industry materially safer. Come join us in continuing that mission. We're committed to picking up the banner Code4rena raised around improving the whitehat experience. A sincere thank you to the Code4rena team for trusting us to carry this forward, and for putting their customers' security first throughout this process. The industry is better for what they built. Onward.
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An important update from the C4 team. 🧵
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C4 has been the arena of choice for some of the best security researchers in the space. It has been the privilege of a lifetime witnessing the competitive and collaborative spirit you bring to your work each day.
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Thank you to every warden, team, and project for your contributions to securing crypto, and for being part of this ambitious, innovative, hardworking, brilliant community. 🙏
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Warden of the Week. Each week, we’ll be shining the spotlight on the sharpest security researchers in Web3. Someone finding real bugs, consistently competing in C4 competitions, and making the ecosystem safer. This week: montecristo
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Some of montecristo’s notable finishes include: 🥇 1st place – Megapot (3 High, 1 Medium) 🥇 1st place – Forte (2 High, 1 Medium) 🥇 1st place – Sequence (1 High) 🥇 1st place – Swafe (3 Medium)
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We’re grateful for Wardens like montecristo who show up week in and week out to help keep our ecosystem safe. Check out montecristo’s profile below: code4rena.com/@montecristo
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