Do I have to download anonymous SMS on my mobile phone?

The mobile phone has been used for a long time, so you should know about SMS. In addition to SMS, it is MMS. It is impossible to send the software directly and then prompt that it is downloading. Generally, short messages are sent by text, and there are pictures and texts in MMS. When the network is slow, the picture opens slowly. As you can see from your screenshot, this message should be MMS. If it is sent by a stranger, or if you are not interested in the content of the multimedia message, you can delete the multimedia message directly. If you are still worried, delete it and use your mobile phone to kill virus.