Trusted by top DeFi engineers since 2017. Born at @ETH_en, ex-@PwC. Probably the most stable team in Web3.
Zurich, Switzerland
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We're hiring for technical and sales roles!
1. Blockchain Security Engineers (multiple)
2. Business Development Engineer
Here’s a bit about what working at ChainSecurity looks like.👇🧵
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We're always happy to bring a security perspective to the Vault Summit. This time in Singapore! 🔜
ChainSecurity is one of the longest-established blockchain security auditing firms, providing smart contract and blockchain security audits since 2017.
It serves the largest DeFi protocols, including Aave, Lido, Sky, and Polymarket, alongside institutions like Circle, banks, and regulated exchanges.
@Spittfires_, Blockchain Security Engineer at @chain_security, will take the stage at Vault Summit Singapore.
9 October · sg2026.vaultsummit.xyz
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ChainSecurity retweeted
How to make security interesting to a wider audience?
Apparently, add AI.
Had a great time talking with @pashov, @allypry and @jgattermayer at @ETHSofiaBG.
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We're very happy to contribute our engineer time to @stblcnsummit. Meet us in Singapore!
ChainSecurity is one of the longest-established blockchain security auditing firms, providing smart contract and blockchain security audits since 2017.
It serves the largest DeFi protocols, including Aave, Lido, Sky, and Polymarket, alongside institutions like Circle, banks, and regulated exchanges.
Yanis De Busschere, Security Engineer @chain_security, moderates the fireside "Purpose-Built Before It Was Cool" at Stablecoin Summit Singapore.
Oct 8 · sg26.stablecoinsummit.com
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"Building a Security Playbook for Solana" at @solana summit by @SuperteamBLKN
Creating best practices for secure Solana DeFi development, based on our audit findings and learnings
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This framework allows a flexible way to manage assets across multiple chains while ensuring that losses can be limited, even in the event of an operator secret key compromise.
Makina Protocol v1.3 is now live.
This release upgrades Makina’s cross-chain infrastructure, improves operational controls, and strengthens protocol safeguards.
The main novelty in v1.3 is the introduction of @chainlink CRE to power Makina’s cross-chain accounting.
Chainlink CRE brings a leaner snapshot-based accounting model and additional sanity checks.
Makina v1.3 also gives operators more granular cross-chain controls. Individual Spoke Calibers can now be enabled or disabled, providing finer control over cross-chain operations and transfers.
Audited by @chain_security.
Full information can be found in the post below.
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We're in Belgrade and happy to let you know @k_besic will present a playbook that will make your Solana development more secure-by-design. Or as he put it:
Kenan Bešić, partner and senior blockchain engineer at @chain_security, is joining us at Solana Summit Serbia.
Kenan is a top-tier security researcher and DeFi auditor across Solana and Ethereum, ranked top 70 all-time on Immunefi and known for discovering the "read-only reentrancy" vulnerability class.
Aug 26-27, Belgrade, Sava Centar.
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ChainSecurity retweeted
We've been getting more audit requests lately.
Are you guys bullish, or just back from summer holidays?
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See you at @belgradebw 🙌
Speaker announcement 📢
Marc from @chain_security joins Web3 Security Summit to talk about what happens to lending markets when an L2 sequencer goes down: stale prices, bad debt and broken assumptions.
See you in Belgrade 🫡
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We reviewed the new YBLendingOracle, allowing YB shares to be priced correctly and used as collateral.
Thanks @yieldbasis for the continued trust and collaboration!
Oracle for using yb-positions as lending collateral is audited by @chain_security.
Builders can find live audited oracles here by ENS addreses:
wbtc.oracles.yieldbasis.eth (and similar for cbbtc, tbtc, weth)
chainsecurity.com/security-a…
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ChainSecurity retweeted
It is rare to meet a top tier team irl in this space (outside of a conference), but this month I was lucky to meet the @chain_security team
Great office, amazing people, fantastic nature. Thanks for the invite, gigabrains 🤝
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The most critical subjects we reviewed include arithmetic precision & asset solvency. Full report available👇
A new Aave V4 security audit by @chain_security is now available, covering the Liquidity Hub, Spoke, and position manager contracts.
Review it below.
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ChainSecurity retweeted
The ChainSecurity audit of Mezzanine is public. Zero Critical findings. Zero High. This sits alongside the Certora formal verification audit, a Sherlock audit, and an ongoing operational security audit. Full report: chainsecurity.com/security-a…
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If you're building on Aptos, we're ready to help secure it.
Happy to review new audit requests on Areta!
1/ The Aptos Security Marketplace from Areta Market is now live on @Aptos!
Proven across 10 ecosystems, 2k+ quotes submitted, and up to 30% average cost savings per audit. Alongside the Aptos Foundation, we’re excited to make top-tier security accessible to Aptos builders.
→ aptos.areta.market
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Security? ✅
Thanks for the deep dive @chain_security 🤿
The Solver7702Delegate feature lets solvers participate in multiple auctions in parallel, bringing faster settlements, increasing competition, and helping deliver better prices for users.
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We recently audited @CoWSwap's Solver7702Delegate, an EIP-7702 delegation target for CoW Protocol solvers.👇
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We recently audited @CoWSwap's Solver7702Delegate, an EIP-7702 delegation target for CoW Protocol solvers.👇
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We also examined how a solver EOA's behavior changes once it carries code, how contracts that check for code length or rely on tx.origin may treat it differently, and how it behaves if the delegation is later revoked.
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Read the full audit report here🔗 chainsecurity.com/security-a…
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