Cyfrin stops vulnerabilities before they become headlines

Cyfrin provides industry-leading Ethereum smart contract security audits chosen by the biggest decentralized protocols and infrastructure providers.

Trusted by the largest organizations and institutions
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Public audit reports

Explore our full library of completed smart contract security audits. Each report details the vulnerabilities found, our methodology, and the recommendations that helped secure leading DeFi protocols.

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Secure your protocol today

Join some of the biggest protocols and companies in creating on-chain finance. Our security researchers will help you throughout the whole process.

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Hear from our users

We’ve helped thousands of people land a job as web3 developers and level up their careers, but don’t just take our word for it.

Their resources for both new and existing developers provide a fantastic platform to spark innovation and greater builder activity.

Anthony Rose
CTO, ZKsync
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Their readiness to support and engage with learners makes me excited for more of their interactive and insightful content in the Web3 space.

Jakub Konopka
Product Designer, Ethereum Foundation

[We are] Highly likely to recommend Cyfrin to other parties interested in securing their on-chain architecture.

Syntetika