Dive into the world of blockchain technology, smart contracts, and NFTs in this comprehensive 59-minute conference talk from LASCON. Explore the fundamental concepts, security implications, and potential vulnerabilities associated with these cutting-edge technologies. Gain valuable insights into the inner workings of blockchain systems, understand the intricacies of smart contract development, and discover the latest trends in non-fungible tokens (NFTs). Learn about common attack vectors, best practices for secure implementation, and strategies to mitigate risks in decentralized applications. Whether you're a cybersecurity professional, developer, or blockchain enthusiast, this talk provides a hacker's perspective on the challenges and opportunities in this rapidly evolving field.