The individual-level system mainly refers to the financial risks and corresponding treatments that occur at the user or token level. For example, abnormal user openings, a large number of deposits and withdrawals, frequent small transactions, high-frequency transactions, multiple account operation, abnormal user-health indexes, multiple liquidations, associated liquidations, low-credit addresses, etc., the risk control system will quickly locate users or tokens at risk, send warnings to managers by emails and text messages, at the same time, instruct the contract to prohibit specific users’ operations or close transactions in designated tokens.