Why does my mobile phone always receive some strange messages?

If someone you don't know or know well sends you some strange-sounding short messages, don't reply! Usually this message will remind you to eat or go to bed early, but don't go back! I can only say that your contact's mobile phone has a Trojan horse, which is a malicious short message. If you reply, it means that you have sent all personal information to him, and the other party's mobile phone will display a black screen and cannot be turned on. No one knows who you sent it to. It's dangerous!