How did the Binance hack happen and who was responsible for the biggest theft in crypto history? Research into the theft of $6.3 billion from the Binance exchange shows that hackers activated the automatic asset withdrawal system by hacking into an engineer's laptop and accessing the service container. In this four-hour attack, 17 Gram wallets were targeted and funds transferred to 9 different blockchains. Cyber security companies have identified the hacker group "Traderbug" or Lazarus affiliated with North Korea as the main cause of this intrusion. So far, Binance, in cooperation with stablecoin issuers, has frozen approximately $3 billion of assets and pledged to fully compensate users.