Operational risk refers to the possibility of unexpected losses due to defects in information systems or internal controls. Operational risk includes the following aspects: the risk that the market risk cannot be correctly grasped due to the error of the computer system responsible for risk management, or the risk of data destruction due to the error of the calculation mechanism; The risk of loss of the computer storing transaction data due to disaster or operational error; The risk of not being able to accurately settle accounts or cheating due to unclear job responsibilities or inappropriate job level; Risks caused by incorrect instruction processing, imperfect internal system and irregular processing steps of trading operators.