Explore the world of smart contract vulnerabilities in this conference talk from #NahamCon2022. Dive into common security issues, including re-entrancy attacks, delegatecall and selfdestruct functions, and initialization vulnerabilities. Examine real-world examples from AMM projects, OpenZeppelin's UUPS proxy bug, and Harvest Finance. Learn about the risks associated with price oracles and spot-price usage in DeFi protocols like Yearn.Finance. Discover the importance of proper authorization checks and access control in smart contract functions. Gain valuable insights and resources to enhance your understanding of smart contract security and potential haunting vulnerabilities.