count-sum @_count_sum
Smart contract developer | Web3 security researcher | Ex-Consensys | Ex-Solana Validator Bucharest, Romania Joined May 2017-
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Not posting on X much as I've been deep in the rabbit hole studying web3sec. Just 2 weeks ago I began my web3 audit contest journey: participated in GTE and Octant where I submitted 10+ issues. 🚀
Live Audit Session at 12:23AM with @Pelz_Dev only at @GuildAcademy_. Nothing beats a practical approach to learning. 🔐 Practical > Theory. This is proof of how solid and impactful our security programs are. Next level.🚀
Leveling up my web3 security skills with @GuildAcademy_ — a challenging program packed with CTFs, hack simulations, senior SR lectures, and tons of assignments. Just finished studying and reproducing the May 2025 Mobius Token exploit.#web3security #DeFi medium.com/@count_sum/mob…
Leveling up my web3 security skills with @GuildAudits — a challenging program packed with CTFs, hack simulations, senior SR lectures, and tons of assignments. Just finished studying and reproducing the May 2025 Mobius Token exploit. #web3security #DeFi medium.com/@count_sum/mob…
🌟 Excited to share that I have successfully completed the Smart Contract Hacking Course and earned a certification from the Blockchain Security Academy! 🎉 A huge thank you to @RealJohnnyTime for creating such valuable content! Here's to a great 2025!
Just unlocked Level: Solana Dev – First Romanian Solana Developer Program ✅ Big shoutout to @cometsofweb3_ for the 🚀 ride through Web3 and Solana.
Workflow of Solidity Compiler. Simply explained. The main process (blue) converts Solidity code into EVM bytecode and generates an ABI for interaction. The Yul process (green) compiles intermediate code for different backends, activated by specific flags. The formal…
Are you craving a movie about the latest crypto hacks? That is factual but paints crypto as the amazing civilizational tool it is? Then check out @CodeIsLawFilm and their crowdfunding page! Not only 'cause I'm in there... but it will be amazing!😍 juicebox.money/v2/p/664
Good talk at the security panel @ #ethbucharest
Every auditor needs this tool in his toolkit. The full precision calculator will help you quickly visualize large numbers and grasp more complex math equations. mathsisfun.com/calculator-pre…
Welcome to the largest competition in history with... @blast_l2 🪐 💰 $1,200,000 USDC 🗓️ January 30th, 3:00 PM EST / 20:00 PM UTC 📍 cantina.xyz/competitions Invite only. Don't have one? Details below:
🤖 Can you block MEV if you use an "onlyOwner" protected proxy contract? Let's find out 👇 Shout out to @0xKral for most recently asking this question that others have asked me!
Didn't realize I have twitter for such a long time.. #MyTwitterAnniversary
Yesterday I began @RealJohnnyTime's Smart Contract Hacking course and I'm already at 22%. Learning never stops.
You can never take a (big) break from learning, so I'm getting back on track. Off to starting a great week!
🔥 Day11 of #30daysweb3security @Web3SecurityDAO Today I finished reading Chapter 10 of Mastering Ethereum Book .👔 Again, slow but consistent progress.🚀
🔥 Day10 of #30daysweb3security @Web3SecurityDAO Today I focused on reading Chapter 10 of Mastering Ethereum Book .👔 Slow but consistent progress.🚀
🔥 Day9 of #30daysweb3security @Web3SecurityDAO Today I continued studying Solidity 201 from Secureum Slot 3. 👔 Learned about Dappsys, WETH, Uniswap, Chainlink libraries and their functions.🚀
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