Explore the world of cryptocurrency security in this conference talk from #NahamCon2022. Delve into a three-year journey of hacking crypto web applications, uncovering vulnerabilities in cloud wallets, and learning about the evolving landscape of digital asset protection. Discover real-world examples of security breaches, including blind XSS attacks, SQL injections, and full account takeovers affecting major platforms in the crypto ecosystem. Gain insights into the Ethereum and DeFi ecosystems, and understand the implications of various security flaws in popular services. Learn about remote code execution vulnerabilities that led to the compromise of high-value stablecoins and the takeover of critical infrastructure. Conclude with final thoughts on the state of cryptocurrency security and the importance of robust protection measures in the rapidly growing digital asset industry.