How does OPPO R9s prevent applications from charging SMS fees?

The so-called charge deduction software refers to software that maliciously deducts mobile phone charges by taking advantage of loopholes in the mobile phone system or users installing software from unknown sources. Generally speaking, the anti-deduction software mainly has the following ways and methods:

1. Installing third-party anti-virus software for mobile phones can timely identify and prevent software from unknown sources or receive fraudulent short messages, thus protecting the safety of mobile phone users. It is also the most effective means at present.

2. Check the phone bill in time, and know the recent phone bill status and deduction in time. Once you find that the deduction is too much, you must be cautious.

3. Do not install software of unknown origin, bad content software and black software, do not open web links or pornographic links of unknown origin, and timely organize the occurrence of fee deduction.

4. The mobile phone should be disinfected regularly to check the safety of all installed software.