PancakeBunny, the DeFi revenue aggregator on Binance Smart Chain (BSC), suffered a lightning loan attack and lost 114,631.5421 WBNB and 697,245.5699 BUNNY, totaling approximately US$45 million. The price of the token BUNNY crashed from 240 US dollars at around 6:35, and once fell below 2 US dollars, with the highest drop of more than 99% at one time. The official response stated that the hacker used PancakeSwap to borrow a large amount of BNB from a flash loan attack from an external developer, and then continued to manipulate the USDT/BNB and BUNNY/BNB prices to obtain a large amount of BUNNY and sell it, resulting in a flash crash of the BUNNY price. Hackers exchanged back to BNB through PancakeSwap.