Hello! I’m Vishaal S, also known as 0xvishh. I’m a passionate Web3 security researcher with a focus on discovering vulnerabilities in blockchain systems. I’m currently expanding my expertise by learning Solidity, Foundry, and Rust to build and secure decentralized applications. With a background in penetration testing and over 2 years of experience in security, I’m excited about the opportunities in the Web3 space.
Blockchain Security Researcher
- Smart Contract Auditing: Manual & automated analysis, CTF solving, audit report writing
- Languages: Solidity, Rust (learning), JavaScript/TypeScript
- Security Expertise: Ethereum attack surfaces, common vulnerabilities (reentrancy, frontrunning, overflows), EVM internals
- Tooling & Frameworks: Foundry, Hardhat, Slither, MythX, Tenderly, Echidna
- Web3 Knowledge: Ethereum, zkSync, Layer 2s, DeFi protocols (Aave, Compound), IPFS
- Traditional Security Background: Penetration Testing, Ethical Hacking, Vulnerability Assessment, Burp Suite, Nmap
- Foundry: Advanced smart contract development and testing
- Rust + Solana: Exploring low-level Web3 systems
- ZK (Zero Knowledge): Cryptographic primitives and real-world usage
Before diving into Web3, I spent over 2 years as a Penetration Tester, working on identifying and mitigating vulnerabilities in web apps, networks, and APIs. This traditional security experience deeply informs my approach to smart contract and blockchain security.
📬 Feel free to reach out if you’re interested in discussing Web3 security, collaborating on audits, or playing CTFs together!