Simon Perriard

Ethereum security is a shared effort. Backing this round is a small way to support the public goods keeping the ecosystem safe, and to enable our team to have an impact on where it goes.🛡️ @Giveth @thedaofund

RT @chain_security: The QF round by @thedaofund & @Giveth had us debating: where does Ethereum security need the most work? We’ve compiled…

RT @chain_security: The ETHSecurity badge distribution from @thedaofund is finished. 7 ChainSecurity auditors earned their place. @hritzd…

We made people eat bugs at Devconnect Buenos Aires. Check the first comment to see who’s in the video & vote for the best reaction. 🏆 Winner gets a lifetime bug supply + a printed copy of the EF mandate. PS: This is not an April's fools, we're completely serious.

Building with @LidoFinance stETH or @aave V3 aTokens? 👀 Rebasing mechanics don’t always match standard ERC-20 assumptions, which can introduce edge cases like rounding dust or unexpected transfer behavior. We explored 4 integration pitfalls and why share-based accounting is

Proud to see 3 of our own make the cut for @thedaofund's first batch of Ethereum's Top Security Experts! 🛡️

1/11 🧵 We just published our security assessment of @aave V4, a redesign of DeFi’s largest lending protocol. Here’s a breakdown of the new architecture, standout features, and exactly how we approached the audit.

We’re proud to continue our partnership with @aave, and contribute to the security of its next evolution - Aave V4.

RT @aave: Aave V4's third security audit has been published by @chain_security. Review their findings below.

Bridged USDC (USDC.e) had a good run, but @Polymarket is officially moving to native @Circle USDC We’re proud to support two of our OG clients in making always-on global markets a reality Why this matters: ✅ 1:1 redeemability ✅ Greater capital efficiency ✅ Audited by yours

We've recently completed a new security audit for @blockv_io, one of our very first clients. 8 years later, it’s the perfect time to see how our audit reports evolved since the OG days.😎 2017 report: chainsecurity.com/security-audit… 2025 report: chainsecurity.com/security-audit…

Inaccurate gas estimates on @ton_blockchain can lead to critical security issues. 🛡️ Today, our TON specialists share the knowledge gained from vulnerabilities uncovered during recent DeFi audits. Dive into the technical details: chainsecurity.com/blog/ton-gas-e…

🧵Hola Buenos Aires! ChainSecurity is in town for @EFDevcon & @partyactionppl 🇦🇷 From talks, panels, MC duties, and community events, here’s your full chronological guide to where you can catch our team 👇

1/13 @GoogleAds phishing is at an all-time high. Even if you’ve never run ads, attackers can buy them in your name. As an ex-Googler, here's what's allowed, what's not, and how to protect your brand.🧵

1/8 🧵 We recently audited @makinafi, a cross-chain asset management protocol focused on operational security by design. Makina’s core principle: even if an operator is compromised, user funds should remain safe. More info in this thread 👇 chainsecurity.com/security-audit…

Want a detailed view of @compoundfinance proposals? Compound Proposal Decoder, our new CLI tool, makes governance more transparent. Fetching proposals on-chain and ABIs from @Etherscan, the decoder prints the details of every action, even rollup calls. chainsecurity.com/blog/a-compoun…

Tiny rounding errors in DeFi math can add up to real losses. Yanis De Busschere, Security Engineer at @chain_security, will speak at DSS on “Bounding Rounding Errors in Integer Maths”, showing how to rigorously reason about error bounds and prevent exploitable mistakes.

1/5 🧵 We recently audited mUSD, @MetaMask’s native digital dollar for MetaMask’s wallet and ecosystem. mUSD is powered by @m0’s universal stablecoin platform. More info in this thread 👇

1/7 🧵 We recently conducted a security review of @pendle_fi @boros_fi. Here’s more info about it👇 chainsecurity.com/security-audit…

EIP-1167 Proxy Contracts are considered minimal. But thanks to EIP-7702 you can do better now. Smaller size. Cheaper Deployment. Cheaper Calls. Check it out: chainsecurity.com/blog/the-real-…