What they say about us
A huge thank you to ChainSecurity for your hard work and diligence. We’re truly impressed by the team.
Founder & CEO, Aave Labs
We were thoroughly impressed by the quality of work ChainSecurity delivered. The team demonstrated a deep understanding of our system, and their thorough, detail-oriented approach truly amazed us. We were equally impressed by their flexibility and professionalism in adapting to unforeseen circumstances. We’re very much looking forward to future collaborations.
Head of Engineering
ChainSecurity has been an invaluable partner throughout years of high-stakes product launches. We prize them for their proactivity, consistency & flexibility—we’re looking forward to continuing the partnership!
Tech lead (Sky)
ChainSecurity is a trusted and reliable partner from the early Maker days. Security is Spark's #1 concern, and ChainSecurity has proven themselves many times over.
Co-founder at Phoenix Labs, working on Spark
ChainSecurity delivered an exceptional audit for our project. Their meticulous approach and quick responsiveness enhanced our security and provided crucial insights. We greatly appreciate their dedication and excellent communication throughout the process.
Head of Cybersecurity
ChainSecurity holds a special place in my heart, only positive experiences with them and they always go above and beyond. During one of our audits, they actually found a bug in an OpenZeppelin contract we were using, 99% of auditors wouldn't bother looking there.
Software Engineering Lead
Aave A huge thank you to ChainSecurity for your hard work and diligence. We’re truly impressed by the team. Founder & CEO, Aave Labs Pendle We were thoroughly impressed by the quality of work ChainSecurity delivered. The team demonstrated a deep understanding of our system, and their thorough, detail-oriented approach truly amazed us. We were equally impressed by their flexibility and professionalism in adapting to unforeseen circumstances. We’re very much looking forward to future collaborations. Head of Engineering Sky (MakerDAO) ChainSecurity has been an invaluable partner throughout years of high-stakes product launches. We prize them for their proactivity, consistency & flexibility—we’re looking forward to continuing the partnership! Tech lead (Sky) SparkDAO ChainSecurity is a trusted and reliable partner from the early Maker days. Security is Spark's #1 concern, and ChainSecurity has proven themselves many times over. Co-founder at Phoenix Labs, working on Spark Euler ChainSecurity delivered an exceptional audit for our project. Their meticulous approach and quick responsiveness enhanced our security and provided crucial insights. We greatly appreciate their dedication and excellent communication throughout the process. Head of Cybersecurity Polygon ChainSecurity holds a special place in my heart, only positive experiences with them and they always go above and beyond. During one of our audits, they actually found a bug in an OpenZeppelin contract we were using, 99% of auditors wouldn't bother looking there. Software Engineering Lead Mezzanine We're very happy with ChainSecurity's expertise and the depth of their reports. It's a professional team we're glad to keep working with, and we're already planning our next engagement with them for the upcoming version of Mezzanine. Gearbox ChainSecurity has been an invaluable partner for us since the initial version of Gearbox. Their team pays close attention to every detail, prioritizing quality over quantity by carefully selecting the best auditors. Inventor of Gearbox Protocol Enzyme We've worked with many Smart Contract auditors in the last five years and ChainSecurity quickly differentiated themselves as a leader in the space. They have relevant DeFi expertise, professional work ethic and have always been a reliable partner. CEO 3F Working with ChainSecurity has been an excellent experience. The team was thorough, easy to work with, and clearly understood the complexity of what we are building at 3F. They flagged things we hadn't considered and steered us toward a cleaner, more robust implementation. We came out the other side with real confidence in our codebase and are excited to continue collaborating in the future. Makina Finance Working with ChainSecurity was a great pleasure. The team is extremely professional, highly knowledgeable about DeFi protocols, and their risks. They were a great partner on a complex and in-depth audit. The responsiveness, flexibility and thoroughness were highly appreciated! CEO Polymarket Hats off to the ChainSecurity team for their stellar work on our security audit. The process was smooth from start to finish thanks to their clear communication style, and our codebase benefited immensely from their thorough analysis. We look forward to working with them in the future! Protocol Lead Gelato We recently engaged with ChainSecurity for the audit of our Smart Wallet SDK. They were professional, easy to work with, and delivered a high-quality and thorough audit. Founder at Gelato Neulock ChainSecurity approached our audit with exemplary professionalism and depth. Their team’s competence and thoroughness sharpened every aspect of our codebase, guiding us toward a cleaner, more correct implementation. Just as important, they were fantastic people to collaborate with: responsive, clear, and genuinely invested in our success. Thanks to their work, Neulock’s security posture is stronger than ever on our security audit. Author Vyper ChainSecurity is a fantastic auditing firm. We've worked together since 2023 and they have provided detailed reviews of our IR optimizer, code generation, and semantic analysis modules. Core Contributor Hedgehog Working with Chainsecurity was a great experience. They were sharp, thorough, and easy to work with. Felt more like a partner than just an auditor, especially valuable given the complexity of Hedgehog Protocol and Synthetic Blockspaced. CEO UltraYield We are glad to have chosen Chainsecurity as the first auditor of our UltraYield vault contracts, the quality of the report and the depth of research are excellent. They've managed to find one corner case which could otherwise slip into the contracts, and in general - make the codebase cleaner and easier to maintain in the future. Liquity We are very satisfied with ChainSecurity's expertise and thorough reports. It's a highly professional team that we would love to work with again. CEO WBTC ChainSecurity has been a trusted audit partner which contributes to the robustness and security of WBTC’s smart contracts. Their thorough audits and clear communication have given our team - and the ecosystem - confidence in every deployment. dEuro We chose Chainsecurity to audit dEURO because they had already worked on Frankencoin and understood the protocol inside out. That background, combined with their reputation for top-tier audits, made them the obvious choice. The process was smooth, the findings were clear and helpful, and we were glad to share the results with our community. Lead Developer OpenEden ChainSecurity demonstrated professionalism and thoroughness in their security assessment of our smart contract. Their meticulous and rigorous approach ensured a comprehensive audit process that validates the integrity and robustness of our codebase. CTO of OpenEden Yelay Working with ChainSecurity was a great experience due to their pragmatic approach. Unbiased and thorough, the team genuinely strives to understand the business case behind the smart contracts. While meticulously highlighting all potential security risks, they always keep the business objectives in focus. Solidity Developer USDT0 Working with ChainSecurity has been an exceptional experience. Their prompt response times, deep technical expertise, and seamless workflow demonstrate their professionalism and dedication to excellence. We are thrilled to partner with them and look forward to collaborating on future projects. USDT0 Velodrome Finance With a tight schedule and an important release on the line, ChainSecurity exceeded our expectations, assembling multiple internal teams and delivering a thorough, accurate report that kept us on budget and on time. We couldn’t be happier or more confident working with their team. Symbiotic Reliable and predictably great quality of analysis maintained for years and years now. As close as you can get to “set and forget” with audits. Co-Founder Kernel ChainSecurity set the gold standard with their meticulous and professional approach to auditing Kernel. Their in-depth analysis and unwavering attention to detail ensured every facet of our protocol was scrutinized and fortified. This audit is a testament to our shared commitment to top-tier security, solidifying Kernel’s standing as a reliable force in the industry. Kudos to the ChainSecurity team for their stellar work! Founder Curve We appreciate ChainSecurity for their very deep and thoughtful analysis! CEO Frankencoin The audit was excellent! Very well done! I'm impressed with how quickly ChainSecurity's software engineers developed a deep understanding of the Frankencoin system and with their meaningful inputs to harden its mechanics. Inspirer Swaap We have collaborated with ChainSecurity on four occasions, and their findings and reports have consistently been thorough and insightful. Their unmatched expertise proved invaluable during complex integrations across different projects. We look forward to continuing our partnership with them in the future. Senior Protocol Engineer SparkDAO ChainSecurity has been consistently thorough in their reviews, reliable and accommodating in our time working with them. Co-founder Conic Conic's V2 audit by ChainSecurity was exceptional. Their thorough analysis revealed complex edge cases, providing invaluable insights that exceeded our expectations and underscored our commitment to providing the highest level of security. Everstake We wish to express our heartfelt gratitude for the remarkable collaboration and interaction we have experienced with ChainSecurity in the context of the Everstake ETH B2C Staking solution audit. The ChainSecurity team has consistently demonstrated an extraordinary level of expertise and professionalism, elevating every interaction with them to a level of genuine enjoyment and unparalleled productivity. COO & CEO Tron ChainSecurity has proven to be a helpful platform for the TRON DAO, providing us with comprehensive security assessments that reinforce the strength and integrity of the TRON network. Their attention to detail has bolstered trust and confidence from our users in the TRON ecosystem. ChainSecurity’s unparalleled expertise continues to play a vital role in helping us uphold the highest standard of security. Community Spokesperson Swell ChainSecurity delivered a prompt and highly professional audit of our swBTC restaking vault. Their quick response, thoroughness, and attention to detail have greatly enhanced the trust in our product. We’re eager to collaborate with them again in the future. Head of Operations Polygon With their in-depth analysis and diligent approach, ChainSecurity has proven a reliable partner, keeping security standards high when it comes to our most critical infrastructure here at Polygon. Smart Contract Lead MakerDao (Sky) It was a pleasure working alongside ChainSecurity throughout the audit of our smart contracts and oracles. They maintained clear and direct dialogue with us, and an attention to detail that covered all bases. We look forward to working with them on future solutions to help grow the adoption of DAI. Head of Protocol Engineering Core Unit Pendle ChainSecurity was a pleasure to work with, exceptionally easy to coordinate with and delivering an audit of the highest quality. Their meticulous attention to detail truly set them apart, making the entire process smooth and efficient. Head of Engineering Lido We are completely satisfied with this engagement. ChainSecurity team was very flexible about slot booking and provided deep code analysis with non-trivial findings. I’ve asked around about this whole experience and everyone considers your work over the top, thank you so much! ❤️ Contributors Summer.fi We continue to be grateful for the comprehensive audits by the ChainSecurity team. Their distinctive understanding of the DeFi space brings an unmatched level of confidence to the audits they employ for us. We are looking forward to continuing working together to bring DeFi forward. Product Manager Compound ChainSecurity has been an outstanding security partner who has earned our admiration and respect based purely on their technical competence and skill. They always go above and beyond to ensure their auditing is of the highest quality, and they are consistently excellent over the many projects we have done together. VP of engineering stUSDT We appreciate ChainSecurity for their thorough auditing of stUSDT, which has been instrumental in safeguarding our platform’s security. Their expertise in understanding Real-World Assets (RWA), combined with their meticulous approach and insightful feedback, aligns perfectly with our commitment to continually enhance the protocol’s functionality and security. Argent ChainSecurity demonstrated exceptional professionalism and expertise throughout the audit. They posed insightful and thought-provoking questions, showcasing great attention to detail. Undoubtedly, they are one of the best teams out there. Co-founder & CSO HelloGold We were attracted by the fact that they span out from the security lab at ETH Zurich (Switzerland's answer to MIT). We kept coming back and continue referring them to others for their professionalism and commitment. Blockchain Lead Digix We are extremely pleased with our choice. All the security auditors were great to work with and their services were professionally conducted. I would recommend ChainSecurity Ltd to anyone looking for top notch secure solutions for blockchains and smart contracts. COO iExec ChainSecurity Ltd provided an expert analysis and audit on each of the iExec V3 smart contracts (mainly the iexecHub and iexecClerk contracts). After an extensive review of thousands of lines of code, ChainSecurity Ltd produced a detailed report which is public and open for everyone to read. The iExec team would like to thank ChainSecurity Ltd for such a rigorous and detailed report! Polkadot When we were evaluating auditors for the Polkadot Claims Contract, the team at ChainSecurity Ltd impressed us with their track record of successful audits and their tooling for verifying properties of smart contracts. For the audit, they were able to functionally verify twelve properties of our smart contract to ensure the immutability of critical state that is needed to bootstrap Polkadot genesis. They helped to identify design, trust, and security concerns in the contract and we were able to work together to resolve each of these. If we have further opportunities for our security needs, we would consider engaging ChainSecurity Ltd again. Web3 Foundation MakerDao (Sky) ChainSecurity went above and beyond our expectations when it came to the audit of our Liquidations 2.0 upgrade of the MakerDAO Protocol. They were the perfect partner to support the biggest upgrade of the protocol since its launch. Head of Engineering Kyber network With their thorough and high quality audits, ChainSecurity has been one of Kyber Network’s primary auditors for years now. We look forward to continuing our partnership with them for many more years to come as we keep growing the frontiers of blockchain. CEO POA Network ChainSecurity has a thoughtful and thorough approach to their auditing process, which is not always the case with security auditing firms. Communication was excellent throughout; their high level of scrutiny, attention to detail, and understanding of complexities helped improve our OmniBridge contracts. POA Network HOPRNet The ChainSecurity team went the extra mile to ensure the HOPR token and distributor contracts are secure. They even identified and resolved a complex issue in the ERC777 implementation by OpenZeppelin that's used by many projects in the space. Founder HOPRNet The entire HOPR team is once again grateful for the highly professional audit by ChainSecurity. Our payment channel and proof-of-relay mechanism is an intricate design that was rapidly understood and evaluated by their auditors, who then delivered an excellent review to help the HOPR community keeping funds in the HOPR payment channels SAFU. Founder POA Network We keep coming back to Chain Security for our protocol and contract audits! Their team is top-notch, delivering comprehensive reviews, fast turnaround, and collaboration from start to finish to ensure our code is of the highest quality and as secure as possible. POA Network NFTfi The audit process was so much more pleasant and constructive than I imagined - I expected something much more clinical to be honest! CTO Angle Chainsecurity did not only run a thorough static analysis of our code like a normal auditor would do, but they also made the effort to understand the Angle protocol as a whole, helping us make our code safer and our protocol more efficient! They were the perfect partner for us building a highly complex system! Core Contributor Q The Q development team highly appreciates the audit performed by ChainSecurity. The matter of the audit consisted of a large number of highly interrelated smart contracts that compose a complex onchain protocol. The auditors' quick uptake and deep understanding of the overall system was very impressive. At the same time, their skill on the lowest coding level was equally impressive. The combination of these two qualities, among others, led to the discovery of some hard-to-spot yet easy-to-fix issues. With this code audit, the Q blockchain has reached a new level in terms of maturity and maintainability. For our ongoing development, we are already planning follow up audit sessions with ChainSecurity. Q Core Team Threshold We’re very thankful for the opportunity to collaborate with ChainSecurity on their security audit of the Threshold Network, the new network formed by the merger of NuCypher and Keep. The staking contracts in Threshold are complex: needing to account for T, NU, and KEEP stakers on one hand and multiple services (proxy re-encryption, tBTC, the random beacon, and more) on the other. ChainSecurity developed a holistic understanding of the system and its key parts, delivering an actionable review and suggestions that directly benefited and improved the contracts being reviewed. Co-founder & CEO Angle Chainsecurity managed to rapidly understand and analyze a code that has been partially forked. They understood in an impressively low amount of time why Angle made changes and how these changes could impact the whole system! Once again, we thank them for their flexibility and rigor! Core Contributor Oasis Chain Security's team showed a high level of professionalism in the essential/engineering area and communication. They were helpful and open for dialogue while providing expertise and recommendations. Oasis.app must be a product our users can trust. We look forward to continuing our work with Chain Security to assure this trust. Head of Operations MakerDao (Sky) I would like to thank CS for their diligent work on StarkNet version of DAI. Their input greatly helped us improve our codebase. Looking forward to working with them in the future! Software Engineer Swaap We have been amazed by the quality of the audit performed by Chainsecurity, as they not only assessed the code but also addressed the core maths logics. This has enabled us to provide a more robust system to our users. Co-founder Angle Once again, Chainsecurity has been able to provide a lot of value in a record amount of time, by thoroughly understanding the underpinnings of an intricate set of smart contracts we built. Not only did they catch the whole organization of the whole system, but they were also able to question the logic of the maths behind the code. Their help on this makes us far more confident in the quality of the system we will deploy. Core Contributor Mellow Protocol Mellow Protocol has really complex contracts and codebase. Our team was very happy to work with Chainsecurity. We were impressed by the professionalism and depth of the smart contracts study by Chainsecurity. The team's versatile approach helped us improve our codebase's security and effectiveness and added confidence before our protocol launch. A huge thanks to the whole team and especially to Nico, Enis and Emilie for their patience and hard work! Contributor Morpho ChainSecurity did a rigorous and thorough report of Morpho’s contracts in spite of its inherent complexity and uniqueness. We enjoyed such professionalism and attention to details. We are confident this audit will harness Morpho’s security level. Co-founder Bancor ChainSecurity’s dedication, level of professionalism, and technical capability during the audit of Bancor v3 were as impressive as it can get. They are definitely one of the obvious partners for current and future versions. Chief Architect Myso Finance ChainSecurity has been an invaluable partner for us, and we highly recommend them to anyone looking for a high-quality audit. Their in-depth experience from having audited many of the leading DeFi projects made them the ideal sparring partner for us and provided rigorous preventative quality-assurance for our codebase. We were deeply impressed by their level of expertise, professionalism and attention to detail. We'd like to thank ChainSecurity again for their support and look forward to working with them again in the future. Founder Gearbox ChainSecurity has been an invaluable partner for us since the initial version of Gearbox. Their team pays close attention to every detail, prioritizing quality over quantity by carefully selecting the best auditors. This ongoing collaboration has transformed them into true partners in our journey, helping us develop the protocol safely. Inventor of Gearbox Protocol Mangrove ChainSecurity has proved its ability to independently understand, thoroughly analyze, and help secure novel and complex smart contracts in a surprisingly short amount of time. We could not ask for a better auditing partner. Smart Contract Lead USDFI The unparalleled technical expertise, ethics, and professionalism demonstrated by Chainsecurity in their operations, execution and delivery is a testament to their exceptional leadership within the industry. It is with great pride that we recognize them as the most trusted partner for the USDFI protocol. USDFI Truefi Chainsecurity did an absolutely amazing job working with us. The team is very knowledgeable, solid, and professional in every way. They definitely rank among the leaders of the space. Head of Engineering MakerDao (Sky) It was a pleasure working with ChainSecurity. They maintained clear and direct dialogue with us and we look forward to working with them on future Layer 2 solutions to help us scale and grow the DAI ecosystem. Head of Protocol Engineering Core Unit YLDR ChainSecurity team exceeded our expectations!I t's been a pleasure working with a team full of professionals. They didn't just look through the code but fully dive into the product. It felt like we'd been working together for years. I guess we've found a solid and reliable partner to have our contracts audited in the future. Product Manager Ethereum Foundation ChainSecurity provided a high quality review and was extremely responsive to the idiosyncrasies of the Ethereum protocol development processes. The team's work helped validate that EIP-4788 was safe for mainnet deployment. Ethereum Foundation Sturdy ChainSecurity produced a thorough and comprehensive report of the codebase for Sturdy's V2 upgrade. They asked thoughtful questions, were a pleasure to work with, and impressed us with their technical depth. CEO & Co-founder Spool Security is a top priority for Spool DAO, so we want to work with the best in the business. The ChainSecurity audit we recently had proved exactly why they are so highly recognised in the industry. As you’d expect, they ran a detailed examination of the codebase with a focus on known attack vectors and product use cases. But, as well, their engineers did so in a friendly, engaged, and proactive way meaning the process ran smoothly and easily. Lead Builder Divergence ChainSecurity scrutinized our multiple iterations, with impressive sophistication and attention to detail. Their talented team meticulously dissected our very complex mechanism and code architecture. Their insightful analysis helps us immensely. A real pleasure to work with, and we look forward to continuing engagements. Divergence Founding Member Compound We’ve worked with several auditing firms over the years, and ChainSecurity stands out as the most thorough and technically rigorous. Their team consistently delivers deep, high-quality audits. That is why they’re our go-to auditor. Compound Labs Head of Protocol 2023 to 2024 Frankencoin The audit was excellent! Very well done! I'm impressed with how quickly ChainSecurity's engineers developed a deep understanding of the Frankencoin system and with their meaningful inputs to harden its mechanics. Inspirer Curve We appreciate ChainSecurity for very deep and thoughtful analysis! Founder & CEO Mento ChainSecurity impressed us with their deep technical understanding of our system and an exceptional level of detail throughout the audit process. Their team’s flexibility and responsiveness made collaboration smooth and efficient — we always felt they were fully invested in helping us strengthen our protocol. We couldn’t be happier with the results! COO Saffron Finance ChainSecurity had a methodological and nuanced approach to security that demonstrated a deep understanding of our complex architecture. From the overview and report on our system to discussions regarding complicated code paths, taking an analytical and adversarial standpoint seemed second nature to their researchers and was extremely valuable for our team. Exceptional professionalism from the very start to the end of our engagement. Founder, Saffron Finance Decentralized USD (USDD) Working with ChainSecurity was an excellent experience. Their team was professional, detail-oriented, and highly responsive throughout the audit process. They provided valuable insights that strengthened our smart contract security and gave us complete confidence ahead of deployment. Uncap Chainsecurity has conducted a very thorough audit. Their ability to find vulnerabilities both at an architectural level and at the implementation level is unmatched. Their extensive experience and professionalism in the security field shows. We cannot recommend them enough. Co-Founder, Uncap Finance Morpho We greatly value the extra time and commitment ChainSecurity dedicated to our project, which required more time and iterations than expected. We highly value this in security firms. M0 Across multiple scopes, ChainSecurity’s auditors have consistently combined rigorous methodology with deep technical insight. Since before the inception of the M0 protocol, the ChainSecurity team has been a trusted security and architecture partner, deeply familiar with the intricacies of our codebase. We look forward to continuing our collaboration. Mellow Mellow Protocol has really complex contracts and codebase. Our team was very happy to work with Chainsecurity. We were impressed by the professionalism and depth of the smart contracts study by Chainsecurity. The team's versatile approach helped us improve our codebase's security and effectiveness and added confidence before our protocol launch. Contributor
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