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Cyfrin

Cyfrin

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About Cyfrin

Cyfrin provides smart contract security audits, developer tools, and blockchain education to enhance Web3 security.

blockchain security developer tools DeFi

Cyfrin is a leading smart contract security and Web3 education platform dedicated to securing the blockchain ecosystem. It brings together industry-leading audit services, developer tools, and blockchain courses under one unified mission—to ensure a safe, transparent, and robust on-chain future for protocols and developers alike. Whether you're a seasoned engineer, an ambitious learner, or a protocol seeking security hardening, Cyfrin delivers comprehensive solutions tailored to your needs.

As the creators of powerful platforms like CodeHawks, Updraft, and Solodit, Cyfrin empowers users across the spectrum—from audit competitions and developer certifications to code analysis tools. The team behind Cyfrin includes former experts from Chainlink, Alchemy, OpenZeppelin, and Microsoft, reflecting their commitment to technical excellence. Cyfrin continues to shape the future of decentralized security and education with a global footprint and trusted partnerships across the blockchain industry.

Cyfrin operates as a multi-pronged organization that bridges security, development, and education in the blockchain ecosystem. Founded by security researchers and educators, Cyfrin emerged to address a critical need in the DeFi space: the lack of accessible, high-quality audit infrastructure and developer training. The platform has helped secure over $40 billion in DeFi Total Value Locked (TVL) and is trusted by top protocols including Chainlink, ZKsync, Swell, Linea, and Wormhole.

Cyfrin's ecosystem includes:

CodeHawks: a competitive auditing platform connecting security researchers with real-world bug bounty opportunities for smart contract protocols.
Updraft: a free educational platform offering courses in Solidity, Foundry, smart contract auditing, and security, with over 200,000 students reached.
Solodit: a security research aggregator that compiles vulnerabilities, bounties, audits, and best practices from across the blockchain world.

Cyfrin distinguishes itself from other players like Halborn or CertiK by blending elite auditing with hands-on, large-scale developer education and crowdsourced security. Its robust tooling (such as Aderyn, a static analyzer) and tight integration across platforms make Cyfrin a full-stack security partner—not just a service provider.

From smart contract auditing to Web3 learning paths and real-time code analysis, Cyfrin delivers unmatched value and reliability for both protocols and developers working in high-risk blockchain environments.

Cyfrin offers a full suite of security and educational tools that make it one of the most holistic Web3 service providers in the industry:

Elite Smart Contract Audits: Performed by researchers from Chainlink, Alchemy, Microsoft, and other top-tier teams, ensuring battle-tested code security.
CodeHawks Competitive Auditing: A community-powered bug bounty platform for public and private smart contract contests—a cost-efficient way to discover vulnerabilities.
Updraft Education Platform: Offers 100% free courses and certifications (SSCD+) to empower developers with smart contract development and auditing expertise.
Solodit Research Database: Aggregates and indexes blockchain threats, vulnerabilities, and audit data for fast, actionable insights.
Aderyn Static Analyzer: Open-source Solidity tool for identifying common vulnerabilities with readable reports for faster development cycles.
Enterprise-Grade Support: 24/7 security advisory, mitigation reviews, and customizable packages to fit any DeFi protocol's needs.

Cyfrin makes it easy to get started, whether you're a protocol looking for audits or a developer ready to sharpen your Web3 skills:

For Protocols: Visit Cyfrin.io and click on "Request an Audit". Provide your codebase details and timelines to be matched with a lead security researcher.
Explore CodeHawks: Launch a public or private auditing competition at codehawks.io. The platform automatically rewards findings based on severity.
Start Learning Free: Join Updraft to access free Web3 and smart contract development courses—no signup needed for open tracks.
Install Aderyn: Use the Aderyn tool locally to perform static analysis of your Solidity smart contracts with no setup friction. It’s available via the official Cyfrin website.
Join the Community: Get security tips, event invites, and audit updates via Discord and Twitter.

Cyfrin FAQ

CodeHawks, a platform by Cyfrin, transforms the smart contract audit process by leveraging competitive auditing. Instead of relying solely on a single team of reviewers, CodeHawks opens your protocol to a vetted network of top-tier researchers who compete to find vulnerabilities. This approach increases coverage, reduces costs per bug, and delivers faster, deeper audits compared to traditional closed-door services.
Cyfrin supports audits across major EVM-compatible and non-EVM chains like Ethereum, Polygon, Arbitrum, Solana, Base, Optimism, and more. Their chain-specific security methodologies and tool integrations—such as Aderyn for Solidity and Foundry DevOps—allow engineers to identify vulnerabilities unique to each network. This ensures cross-chain compatibility and threat mitigation for all supported protocols.
Through Cyfrin Updraft, developers can earn the Solidity Smart Contract Developer Certification (SSCD+). This industry-recognized certificate validates proficiency in secure Solidity coding, DevOps, and smart contract design. It’s trusted by top protocols like Chainlink, Scroll, Curve, and Rocket Pool—making it a valuable credential when applying to Web3 jobs or freelance security roles.
Yes, Cyfrin offers both private and public audit services, with fully customizable scopes, timelines, and engagement models. Teams can choose dedicated security leads, participate in mitigation sessions, and access continuous support before and after deployment. Cyfrin’s modular process aligns with any project's technical stack and business needs, including fast-tracked delivery or extended review rounds.
Solodit is Cyfrin’s blockchain security intelligence hub. It aggregates data on known vulnerabilities, past audit reports, and bounty contests from across Web3. Researchers use Solodit to stay updated on new threat patterns, while protocols use it for benchmarking their code against known issues. It creates a transparent layer of shared knowledge and is deeply integrated with the CodeHawks auditing workflow.