The FBI has accused North Korean hackers of carrying out a cyberattack on the Dubai-based cryptocurrency exchange Bybit, resulting in the theft of nearly $1.5 billion. The attack involved gaining control of an offline Ethereum wallet, and the stolen funds are reportedly being laundered through thousands of wallets using a method known as 'TraderTraitor.' The FBI has identified 51 Ethereum wallet addresses linked to the stolen assets and is urging crypto firms to block transactions associated with these addresses to prevent further laundering. Bybit is investigating the incident, which appears to be the largest crypto hack to date.