The business claimed in a blog post on Friday that a cyberattack on Thursday night allowed attackers to steal around $567 million from the cryptocurrency exchange Binance.
"We want to start by apologising to the community for the incident's exploit.
Binance CEO Changpeng "CZ" Zhao tweeted that there had been a "exploit," which caused the news to go viral on Twitter.
A cryptocurrency exchange is Binance.
It can be used by anyone to trade various kinds of digital currency.
The site also features a cryptocurrency called "BNB" that it refers to as a "native coin."