Recently, a news report titled "466 problematic apps released by the Ministry of Industry and Information Technology in recent years" has attracted the attention of netizens. The report pointed out that a virus called "DowginCW" exists in multiple popular games in the form of plugins, secretly controlling at least 100000 mobile devices in China. With the fermentation of this news, the age-old topic of mobile phone safety has once again attracted people's attention.

With the rapid development of mobile Internet and the popularity of smart phones in recent years, many mobile payment tools have also been born, such as WeChat, Alipay and other commonly used payment software, which have become the first choice for people to pay for travel consumption. It is also the birth of these mobile payment tools that has made protecting mobile phone security increasingly important.

The 2016-2017 quarterly inspection report on the mobile phone security market released by iMedia Consulting shows that in 2016, the mobile phone security issues that users were concerned about were divided into many types. Among them, 73.3% of users were concerned about the security of mobile payment assets, 64.8% were concerned about personal privacy breaches, and there were also common mobile phone security issues such as harassing phone calls, public WiFi security, and spam messages. The report also shows that users' overall awareness of mobile phone security is not high, and mobile phone security issues are still prominent.

In fact, the situation of mobile phone security issues has remained severe since the outbreak, especially with the trend of mobile phones gradually replacing PCs in recent years, making it a high-risk area for various viruses and Trojans. The news reports about the outbreak of new mobile phone viruses are wave after wave, and mobile phone security issues continue to emerge, posing a threat to users' mobile phone security. As for the control of mobile phone security issues, although many security guards have become increasingly sophisticated in their protective measures, virus creators have also become more sophisticated in their methods. Various security risks that are difficult to prevent have always existed in mobile phones.