Hackers stole more than $6 billion in cryptocurrency from Binance in 20 minutes. Binance has frozen assets worth $3 billion and promised users it will cover all losses. Binance said the breach may have involved a compromised laptop and other entry points. Several technology security companies suggested that an elite hacking group based in North Korea could be responsible. Cybersecurity expert Peter Tran said recovering the money poses a challenge because the stolen cryptocurrency remains fully tradable.