The US has linked North Korea-backed hackers to a massive cryptocurrency heist worth $615m (£469m) from players of the popular online game Axie Infinity in March.
The game allows to earn crypto through game play or trading their avatars.
The hack is likely one of the biggest ever to hit the crypto world.
US officials say they linked the breach to a group called "Lazarus", believed to be controlled by North Korea's primary intelligence bureau.
Lazarus Group gained notoriety in 2014 after they were accused of hacking into Sony Pictures and publicly leaking confidential data.
The group demanded that Sony withdraw its then-upcoming film The Interview, a satirical comedy about a plot to assassinate North Korean leader Kim Jong-un.
A United Nations panel that monitors sanctions on North Korea has accused Pyongyang of using stolen funds to support its nuclear and ballistic missile programmes as a way to avoid international sanctions.