My QQ is always locked automatically. What happened?

What is a QQ lock? QQ lock is a function to protect personal privacy for all users. After locking, your QQ is still online and can receive messages, while others can't view your friends list and any messages. Only by entering the correct password can you unlock it and view the information in QQ. Before you lock QQ, the session windows you have opened will be automatically hidden without closing them one by one. When you unlock QQ, it will automatically help you restore the previously opened window. Of course, the locked QQ can be closed directly without entering a password. How to lock QQ? There are many ways to lock QQ. You can choose the way you are used to in the following ways. 1. Click the main menu button in the lower left corner of the QQ main panel, and directly click the lock button in the menu that appears. 2. In the menu of Change Online Status button next to the avatar at the top left of the QQ main panel, click Lock QQ item directly. 3. Click Lock QQ Project in the right-click menu of QQ avatar in the tray area. 4. Open the system settings-> Status and reminders-> In the online state, automatically switch to the lock after selecting the mouse and keyboard to be inactive. Here, you can customize the waiting time for automatic switching. 5. You can directly lock QQ with hotkeys. The default hotkey of the system is Ctrl Alt L, or you can go to System Settings-> Basic settings-> Hotkeys In this page, modify the hotkeys that lock QQ. Enter the password to unlock it again.