At 4:24 AM Beijing time on October 30th, Binance, the world's largest cryptocurrency exchange, had one of its most frequently used hot wallets emptied in a single transaction. Over the next 40 minutes, approximately $3.3 billion flowed out of two hot wallets combined. If confirmed, this would be the largest theft in cryptocurrency history—more than double the $1.5 billion theft from Bybit in February 2025. Even more outrageous: an hour and a half later, Binance's own wallet transferred another 200 million USDT to this already compromised address. 72 seconds later, this $200 million was also wiped out. Let's examine the original on-chain records to clarify this event step by step.