According to Miles Deutscher (@milesdeutscher), some of the most significant negative events in cryptocurrency history include the collapse of Mt. Gox, the FTX bankruptcy, the LUNA and UST stablecoin failure, and the insolvencies of 3AC, Celsius, Voyager, BlockFi, as well as the recent Pump Fun and Bitconnect incidents (source: Twitter, June 4, 2025). Each of these events led to substantial market volatility, loss of trader confidence, heightened regulatory scrutiny, and liquidity issues across digital asset platforms. For active traders, understanding the historic impact of these crises is critical for risk management, anticipating market reactions to similar news, and identifying periods of extreme price dislocation and recovery opportunities.