Tắt Quảng Cáo [X] Đăng Nhập để ẩn Tất Cả Quảng Cáo Last week I found news about a loss of $ 19M experienced by DeFi, apparently caused by the FlashLoan Attack and I was very curious about the method used, so I tried research to find the method, until in the end I found a reference from the solidity documentation this is the result i got