KB Kookmin, Shinhan, Woori, and IBK Industrial Bank suffered a total of 49 billion won in financial losses due to loan fraud by outsiders. The fraud occurred through collusion between real estate enforcement companies and false distributors, and the banks are actively cooperating with internal investigations and police investigations. The amount of damage has significantly increased from the initial announcement, which is due to the confirmation of additional fraud cases. The banks are taking measures such as the sale of collateral and debt preservation to recover loans, and plan to take legal action, including criminal prosecution, if illegal acts are confirmed.