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ChainSecurity (@chain_security) profile picture

Trusted by top DeFi engineers since 2017. Born at @ETH_en, ex-@PwC. Probably the most stable team in Web3.

Zurich, Switzerland
Joined July 2017
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This week the ChainSecurity team is on stage 8 times across @summit_defi and @EFDevcon in Mumbai + running Glamsterdam 1:1s all week. Our schedule is below - come find us. ☺️
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We've been securing institutions and central banks and government-owned entities long before stablecoins were on everyone's roadmap. Pietro brings that experience to Vienna Bluechip26: come find him 🔐
🔎 Stablecoins For Institutions: Weighing Risk Against Opportunity Panel discussion at Bluechip26, featuring: • Anna Petrenko (@Anna_Petrenkoo), Everstake • Triv, Trezor • TokenBrice (@TokenBrice), Pharos • Chris Thomas, Yields Digital • Pietro Carta (@PtrCarta), ChainSecurity Bluechip26 is the world's first and leading conference dedicated to crypto safety. Get tickets at conference.bluechip.org. 📍 Nov 10-11 in Vienna
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Our team flagged these issues, and it's great to see core devs put security ahead of the timeline. Special thanks to @pcaversaccio for helping escalate it 🙏
LATEST: ⚡ Ethereum developers say they are delaying the Glamsterdam hard fork process and won't fork the Hoodi testnet until gas-repricing issues flagged by ChainSecurity are resolved.
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If you didn't catch our engineers at Devcon yet, come meet us at the Security Hub on Thursday. ⏲️ 15:40 - 17:30, Nov 5th We will be there to answer all Glamsterdam questions!
Replying to @thedaofund
Thursday, November 5 09:00–10:00 | Networking 10:00–10:20 | ART-ECDSA: Threshold Signing Light Enough for a Hardware Wallet Sung-Hyun Jo, @crossbar_inc 10:30–11:10 | LeakDetectAI Manu Gupta, @libp2p 11:20–12:00 | How to Defend Your Protocol in the AI Era @saxenism, @bluethroat_labs 13:20–13:40 | Building an Autonomous AI Security Triager: From LLM to 20,000+ Real Reports @d0rsky, @HackenProof 13:50–14:20 | Key Management @LewellenMichae, @turnkeyhq 14:30–14:50 | Onay: 2FA for Ethereum Transactions @kaanuzdogan, @argotorg 14:50–15:30 | Solidity Compiler @hbbiok, @okcontract 15:40–17:30 | Breaking Changes in Glamsterdam: Will Your Contracts Still Behave? @chain_security team 17:30–18:00 | ETHSecurity Badge holders Hangout
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Audits are where we usually meet threats, but tomorrow we're meeting them a bit earlier. Mumbai, 9:30 AM sharp.
⛑️ 🏏 Everything is downstream of security See you at the first ever Ethereum Forward Defence Summit tomorrow at the Mumbai Cricket Association (MCA Banquets). A working security summit from @Safe, the @ethereumfndn 1TS team & @LidoFinance @chain_security. Ethereum’s sharpest security minds, one room, one goal: meet threats before they arrive. ⏳ See you tomorrow ⏲️ 9:30 AM sharp! Full lineup 👇
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Many hacks, many learnings.
What have we learned from recent hacks? Matthias Egli explores the lessons at DSS 2026. Top hacks since Devcon 7 - what did we learn? Add it to your DSS shortlist: defisecuritysummit.org/2026/… Tickets: luma.com/9qtxqqxx
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Watch one of our auditors become a quiz master for the morning and see if you can win.
Test your smart contract security knowledge with Lothaire Aubergeon at DSS 2026. The Big Smart Contract Security Quiz Choose your sessions and share your picks: defisecuritysummit.org/2026/… Tickets: luma.com/9qtxqqxx
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We can't wait for this one!
Explore Glamsterdam with Ioannis Sachinoglou at DSS 2026. Glamsterdam Hard Fork: When Spent Gas Comes Back Save the talk and share your shortlist: defisecuritysummit.org/2026/… Tickets: luma.com/9qtxqqxx
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MPC wallets are a promising non-custodial solution, increasingly trusted by institutions, but the come with a set of challenges, and need an expert review. As part of our efforts to secure the crypto ecosystem, we have been investigating MPC wallet implementations in the wild and have identified several attacks that could steal private keys. In our latest blog post, we document a common pitfall of integrating with popular libraries, which put a large MPC wallet provider at risk 👇 chainsecurity.com/blog/pleas…
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We're happy to be one of the auditors on Areta. Applications are open ↓
1/ 🔐 Extension secured! 185 applications. 60+ projects supported. $500k in subsidies allocated. We’re excited to bring 3 more months of the Ethereum Security Subsidy Program to @ethereum builders. Big thanks to @ethereumfndn and @NethermindSec for helping make the pilot program a success - let’s keep it going!
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This is what a good auditor looks like. ChainSecurity found a gas-accounting issue in Ethereum’s next upgrade before it reached mainnet, and the test fork got pushed so teams can check their code. ChainSecurity audits Mezzanine. To be clear, nothing in this finding touches Mezzanine’s contracts.
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In short: after Glamsterdam, some calls that used to fail out of gas can now complete, and contracts built on the old behavior can make the wrong call. We're working with the EF and affected teams. If you're unsure about your code, reach out via glamsterdam@chainsecurity.com
ETHEREUM JUST PAUSED ITS GLAMSTERDAM TEST. Ethereum called off the October 26 Glamsterdam test on the Hoodi test network after ChainSecurity warned that two proposed gas-pricing changes could break safeguards in existing contracts. No new test date has been announced.
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We're happy our research could help here. A testnet delay is a lot cheaper than broken contracts on mainnet. What changes and how to check your code ↓ chainsecurity.com/blog/glams…
UPDATE: Ethereum developers postpone the Glamsterdam upgrade on the Hoodi testnet, after security researchers flagged that EIP-8037’s gas accounting changes could permanently alter how existing smart contracts handle failed transactions. No new date has been announced.
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⚠️ It has just been decided to delay the Glamsterdam hard fork on the Hoodi testnet because of security impacts we identified in this blog post: chainsecurity.com/blog/glams… We already found 13 real-world examples and are in responsible disclosure with the affected projects. Please check your contracts as soon as possible, as the EF is determining how many contracts are impacted in which way. Feel free to reach out to us with questions via glamsterdam@chainsecurity.com.
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We've worked with @aeroxyz since day one, from architecture design all the way to the full, final audit. Excited for the take off. ✈️
Aero is here 🌤️ Get on board at aero.xyz
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Security for institutions has been in our DNA since our days at PwC Switzerland in 2020. If you're bringing assets, payments or treasury on-chain, Pietro is the person to talk to at Bluechip26. 📍 Vienna, Nov 10-11. DM us to talk.
🎙️ Pietro Carta (@PtrCarta) is speaking at Bluechip26, the Crypto Safety Conference! Pietro is Partner & Senior Blockchain Engineer @Chain_Security, one of the longest-standing blockchain security firms, securing critical code & architecture across crypto since 2017. Bluechip26 is the world’s first and leading conference dedicated to crypto safety. Get tickets at conference.bluechip.org. 📍 Nov 10-11 in Vienna
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