There are several types of platform account freezing. The first type is to modify the security settings. If the user changes the device to modify the initial security settings, the platform will ensure the safety of funds for 24 hours, and the risk control will automatically recover after 24 hours. The second type is to cancel orders multiple times. When the number of order cancellations reaches the upper limit, the platform will limit the currency purchase function and will be blocked for 15 minutes to 24 hours, and will be cleared at dawn the next day. The third type is to trigger the platform risk control. For example, the account that has recently traded with Huiwang has triggered the platform security risk warning, which will limit the account function and freeze it for 60 days. The fourth type is to place an order requiring the user to place a single limit order, an advance limit order, and a take-profit and stop-loss order. The corresponding amount of assets will be frozen, and the order can be restored after cancellation. The fifth type is t plus n, which is a prompt to trigger the t plus n security protection restriction after buying coins. For the sake of transaction safety, you need to wait patiently for days before the system automatically releases it. The sixth type is four f freezing. After the platform receives the freezing letter from the four f agency, it will restrict the account function and freeze it according to the requirements. Users need to contact the relevant agency to verify the reason. Four f freezing is special and needs to be treated with caution. The above are several situations of freezing.