Less than 5 years, hackers have swept away $10 billion from the blockchain! 2021: Poly Network, loss of $611 million (white-hat hacker, most returned) 2022: Ronin Bridge, loss of $612 million 2023: Binance Bridge, loss of $570 million 2025: Bybit, loss of $1.4 billion (largest single loss in history) April 2026: Kelp DAO, loss of $293 million Every bull market is harvest season for hackers. The blockchain is a dark forest, and security is always the most expensive tuition fee!