What should I do if the mobile browser prompts that there is a security threat accompanied by a beep?

There is a virus program in the mobile phone, which is used to make the mobile phone automatically open a website; The "security threat accompanied by buzz" should be the content of the website itself (in fact, dynamic pictures or videos or audio), and its purpose is to trick you into downloading installation packages (generally some useless junk software or even some virus programs that are more harmful); If the "anti-virus software" such as 360 mobile guards fails, you can back up important data (photos, text messages, etc. ) in your mobile phone, then format the memory card and restore the factory settings; In addition, the so-called anti-virus software is now a decoration, which mainly plays the role of psychological comfort. Usually be careful not to open unknown or bad websites casually.