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Emem Etim @codeboxz

Software Engineer | Web3 Security Audit/Researcher | Physicist

Joined October 2022
  • Tweets 296
  • Following 956
  • Followers 159
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Emem Etim@codeboxz
1 Oct 2023
I just want to be one of the best Software Engineers in the World.
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Yeay, I have received reputation points and increased my rating on the leaderboard on @HackenProof hackenproof.com/ #hackenproofed #bugbounty

HackenProof | Web3 Bug Bounty platform for Crypto Projects

HackenProof is a leading bug bounty platform in the web3 space. HackenProof’s primary aim is to offer crowdsourced services such as bug bounty programs, smart contract contests

hackenproof.com
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Yeay, I have received reputation points and increased my rating on the leaderboard on @HackenProof hackenproof.com/ #hackenproofed #bugbounty

HackenProof | Web3 Bug Bounty platform for Crypto Projects

HackenProof is a leading bug bounty platform in the web3 space. HackenProof’s primary aim is to offer crowdsourced services such as bug bounty programs, smart contract contests

hackenproof.com
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I'm building in the Solana Frontier Hackathon, powered by @Colosseum! arena.colosseum.org/hackatho…
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The big city sleeps, but the code never does. Neither do the crooks.
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I'm excited to announce I've just completed the Updraft Smart Contract Security course 🎉 A 24hrs course to learn about: - Advanced smart contract security security - Manual review - Invariant and Fuzz testing With 6 hands-on auditing sessions! Check it out 👇 @CyfrinUpdraft
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Most teams think passing an audit means they’re safe. It doesn’t. Here’s the “Rekt Test” I use to evaluate if a protocol is actually resilient. 🧵👇
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7️⃣ Are key invariants defined and tested on every commit? 8️⃣ Is key management multi-party? 9️⃣ Have you undergone external audits? Automation ≠ assurance.
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Most major failures weren’t Solidity bugs. They were: Privilege failures Operational failures Dependency failures Governance failures If your threat model ends at the smart contract, you haven’t passed the Rekt Test. #Web3Security #SmartContractAudit #DeFi
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“If a technological feat is possible, man will do it. Almost as if it’s wired into the core of our being.” -Motoko Kusanagi, Ghost in the Shell
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ABI (Application Binary Interface) encoding in Solidity, explaining its role in concatenating strings and encoding data into binary. It provides insights into the process of compressing binary data and techniques for multiple data encoding.
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I just passed the Certification: Blockchain Basics exam on Cyfrin Updraft! updraft.cyfrin.io/courses/bl…

Blockchain Basics - Certification: Blockchain Basics

This proficiency exam is designed to confirm your understanding of all key concepts and learnings presented in the course material. You will have 45 minutes to answer 30 questions and score 18 to...

updraft.cyfrin.io
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I did it! I've completed the Solidity fundamentals course 🎉 5 hours of resources to learn: - Solidity smart contract development - Blockchain oracles - Smart contract testing and security Completely for free. Check it out 👇 profiles.cyfrin.io/u/etimemi…
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I did it! I've completed the Solidity fundamentals course 🎉 5 hours of resources to learn: - Solidity smart contract development - Blockchain oracles - Smart contract testing and security Completely for free. Check it out 👇 profiles.cyfrin.io/u/etimemi…
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It is not the beauty of a building you should look at; it’s the construction of the foundation that will stand the test of time. -David Allan Coe
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“Two roads diverged in a wood and I — I took the one less travelled by, and that has made all the difference” – Robert Frost
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Reentrancy is still exploited in 2026. Not because engineers forgot guards — but because they made unsafe state assumptions. 🧵👇
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Even with guards, protocols break when: • Accounting spans multiple contracts • Callbacks re-enter related state, not the same function • Invariants aren’t defined globally The guard passes. The system fails.
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Reentrancy isn’t a pattern bug. It’s an invariant violation problem. If your protocol is only safe when calls happen in the “right order,” it’s already vulnerable. #Web3Security #SmartContractAudit #ExploitAnalysis #Solidity #Rust #Solana
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