Here's an archive of a paywalled article about it:
archive.is
The summary in the previous article was inaccurate. What actually happened was that a company with a blockchain-based game got hacked by the North Koreans who stole a bunch of money from the game's users.

How North Korea’s Hacker Army Stole $3 Billion in Crypto, Funding Nuc…
archived 14 Jun 2023 22:07:08 UTC