Tensions between two of the richest men in cryptocurrencies erupted into open warfare on Twitter over the weekend, transfixing much of the digital-currency world.

On one side is Sam Bankman-Fried, the founder of crypto trading firm Alameda Research and FTX, a crypto exchange that has been growing in size and recognition the past two years. On the other side is Changpeng Zhao, the founder of Binance, the largest crypto exchange by volume.