Why does my mobile phone often receive short messages "Your mobile phone is poisoned and needs antivirus software"?

According to your description, the message you received may be a fraudulent message, which induces you to download malicious plug-ins and maliciously charge your mobile phone. If you have downloaded it, I suggest you format it or brush it to solve this problem. Don't worry if you don't download it ~

I hope the above answers are helpful to you.