Yesterday, ~$1.4bn was stolen from Bybit. This is the largest hack in crypto history, completed by Lazarus Group, North Korea’s state sponsored cyber-crime unit.It wasn't a hack of keys or passwords, it was something much more sophisticated. Attackers tricked multiple employees into approving a legitimate blockchain transaction. This seemingly routine transaction had a hidden flaw. A single parameter, buried in the transaction data, flipped from 0 to 1. That tiny change transferred full control ...