How is it that mobile phones frequently receive garbled text messages?

If the received SMS is garbled, there are generally the following reasons: the format input by the sender user is incorrect; The receiver can only receive English, and the sender sends Chinese.

Then the mobile phone virus began to spread. Mobile phone viruses are inspired and influenced by PC viruses, and there are also so-called mixed attacks. According to the survey of McAfee, an IT security vendor, in 2006, the number of mobile phone users who were attacked by mobile phone viruses reached about 83%, a five-fold increase over 2003.

Development history:

At that time, the mobile phone company Movistar received a large number of harassing text messages called "Timofonica" sent by computers. The virus sends spam messages such as swearing to users in the mobile system of Telefonica, a Spanish telecommunications company. In fact, the virus can only be regarded as a text message bomb at most.

The real mobile phone virus only appeared in June 2004, that is, the "Cabir" worm virus, which was copied by Nokia s60 series mobile phones, and then kept looking for mobile phones with Bluetooth installed.