According to my previous calculations, Bybit's annual profit may be around 2.5-3.5 billion US dollars. Stolen 1.5 billion US dollars, taking away approximately half a year's profits. Of course, this algorithm is only based on public information. Friends familiar with the situation are welcome to correct it. To some extent, the POR reserve certificate triggered by the collapse of FTX has also saved various exchanges. Exchanges are less likely to misappropriate user assets and can relatively better redeem them in case of any problems.