Apr 12
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Smart contract security is not optional. It is the foundation of DeFi. In this video, we break down 6 critical smart contract vulnerabilities that have caused millions of dollars in losses across the crypto ecosystem. This is Part 1 of a deep technical series where we analyze real-world exploits, understand attack mechanics, and explore how modern protocols defend against them. Covered in this video: 1. Reentrancy Attacks (The DAO Hack) 2. Integer Overflow & Underflow 3. Access Control Vulnerabilities 4. MEV & Front-Running Attacks 5. Smart Contract Security Fundamentals 6. Why DeFi is a High-Risk Environment We go beyond surface-level explanations and focus on: • Attack execution flow • Real exploit scenarios • Code-level vulnerabilities • Secure design patterns used in production systems This is designed for: • Smart contract developers • Web3 engineers • Security researchers • DeFi protocol builders If you're building in Web3, understanding these vulnerabilities is non-negotiable. Part 2 will cover: Flash Loans, Oracle Manipulation, Delegatecall Risks, Cross-Chain Exploits, and more. Resources: • OpenZeppelin Contracts • Solidity Docs • Ethereum Security Best Practices Connect with me: GitHub: https://github.com/codebyankita LinkedIn: https://www.linkedin.com/in/ankita-virani-4bb478282/ Twitter (X): https://x.com/anki_eth Telegram: https://t.me/ankitaeth Channel: CodeByAnkita Deep dives on smart contracts, DeFi, and blockchain engineering.