The notorious North Korean hacker group Lazarus has been linked to the massive $1.5 billion exploit on Bybit.The attackers used a method called 'Blind Signing' to execute the breach, compromising Bybit's ETH cold wallet.The stolen funds were divided among over 40 different wallets, making tracking and recovery more difficult.Lazarus's cyberattacks are believed to be a state-sponsored initiative to fund North Korea's military projects.