The attacker (kuybupeykieh) launched an attack on the EOS quiz game contract (vegasgame111), making a total of hundreds of EOS. The data on the tracking chain found that, in order to prevent the flow of funds from being tracked, the hacker used dozens of operations to create sub-accounts. In order to transfer the acquired assets sequentially, the attacker used the "fake EOS" vulnerability to carry out the attack.