The Federal Bureau of Investigation said on Wednesday that North Korea was responsible for the theft of approximately $1.5 billion in virtual assets from cryptocurrency exchange ByBit. The agency said it refers to this specific North Korean malicious cyber activity as "TraderTraitor.

The FBI has officially linked the $1.4 billion cryptocurrency heist at Bybit to North Korean state-sponsored hackers after security researchers reached the same conclusion. The agency alleges that the infamous North Korean hacking group Lazarus is behind the hack.

Assets were stolen from Dubai-based cryptocurrency exchange Bybit earlier this month, in what's believed to be the largest-ever digital heist.