Kuba (@qbs_sec) header
Kuba (@qbs_sec) profile picture

Kuba

@qbs_sec

security researcher & smart contract auditor & DeFi enthusiast @GuardianAudits

Joined January 2014
  • Tweets52
  • Following300
  • Followers157
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Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)Photo by Kuba (@qbs_sec)
Today, Guardian announces Vanguard. A security audit designed to protect onchain teams facing unprecedented cyber risk. Along with Vanguard, we are announcing $1,000,000 in security audit funding. 🧵
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Gamma V2 Vaults are officially live! Permissionless, user-controlled liquidity vaults. Your vault. Your strategy. Your execution. Built on @Uniswap V4 🧵
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Such a nice challenge! 🎖️🔥Try it out with the answers provided by @kamensec !
SΞCURΞUM (@TheSecureum) profile pictureSΞCURΞUM
@TheSecureum4 May 2024
🎉 Secureum RACE-29 Results 🎉 💨 Number of Runners: 96 ⚖️ Median Score: 3.5/8 🥇 Top Score: 7.5/8 🙏 Designer: @kamensec 🏆 Top 32 Leaderboard 🏆
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#tbt Congrats to the top three contenders of the @hexens x @TheSecureum Bootcamp! 🥇 @ustas_eth 💵 $3,337 🥈 @qbs_sec 💵 $1,337 🥉 @pranav__garg_ 💵 $1,337 Big shout-out to Secureum founder @0xRajeev and Hexens CTO and Secureum mentor @kemmio for making it happen. Stay tuned as we bring you more in 2024!
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🔥
Image from Kuba (@qbs_sec)
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Finally, can close the year with this achievement unlocked @TheSecureum 🫡🫡
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🔥Looking forward to the upcoming @hexens workshops!
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The ZK math had me really overwhelmed. Relearning math as an adult can be tough. If you feel the same way, this stuff breaks it down beautifully in ELI5 style! rareskills.io/blog
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hey anon, I just dropped an article exposing cross chain bridges weak spots. Hope you enjoy! medium.com/@deliriusz/crypto… 🫡
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oh, that's nice 🔥
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Some cool stuff from @GalloDaSballo 🔥🔥 If you wanna know what auditors should learn from poker players, check it out! Just in time for Sunday car trips 🚗 youtube.com/watch?v=7QF8KDS9…
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All that account abstraction related stuff is really gonna be a huge milestone in the mass adoption of crypto. With the momentum that EIP-4337 gave, I’m looking forward to having a 'Forgot Password' button on the @MetaMask interface. 😻 👇
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If you wanna dive deeper into this brilliant concept take a look at this: metamask.io/news/latest/acco… and check what security challenges it brings: blog.openzeppelin.com/eip-43… code4rena.com/reports/2023-0…
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Swapping and liquidity providing are among the most basic DeFi primitives, and the best place to delve into their essential concepts and understand them well is the UniswapV3 book by @jeiwan7: uniswapv3book.com/
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Building mental models of DeFi mechanisms based on battle-tested approaches makes it easy to compare them to the ones spotted during a protocol audit. For instance, exploring veTokenomics - Curve, staking rewards calculations - SushiSwap, liquid staking derivatives - Lido, etc.
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Just finished reading a great post from @smpalladino. If you're looking for some beginner-friendly stuff on zero-knowledge proofs, you'll definitely love it! dev.to/spalladino/a-beginner…
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Not too many findings, but still glad to be in the top 3 😅
Sherlock (@sherlockdefi) profile pictureSherlock
@sherlockdefi19 Jun 2023
🥇roguereddwarf just made $11,394.08‼️ Congrats to: 🥈Quantish - $116.11 🥉@j_zmyslowski - $116.11 and everyone in the @BreederDodo audit. roguereddwarf made $4,000.00 fixed pay + $7,394.08 from the contest pot! $15,000.00 rewards ➡️ $3.5M+ paid out in rewards.
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No more vault inflation attacks?😻😻 The new @OpenZeppelin update of ERC-4626 introduces a defense mechanism called the virtual offset. It comprises two key elements: 1) It utilizes a higher precision for representing shares compared to the underlying asset.
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2) It puts virtual shares and virtual assets into the initial exchange rate computation. As the offset determines the rate of virtual shares to virtual assets is also enforce the conversion rate when the vault is empty, making the inflation attacks unprofitable.
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More info here: docs.openzeppelin.com/contra… github.com/OpenZeppelin/open… mixbytes.io/blog/overview-of… github.com/OpenZeppelin/open… blog.openzeppelin.com/introd…
ERC4626

ERC4626

The official documentation for OpenZeppelin Libraries and Tools

docs.openzeppelin.com
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