How can Android phones prevent app from sending SMS messages to operators?

(1) to ensure the security of downloading.

At present, there are many mobile phone resources available for free download on the Internet. However, many Trojan viruses are hidden in these resources. When users use mobile phones to download various resources, they should ensure that the download site is safe and reliable, and try to avoid downloading from personal websites.

(2) Query the software permission list

Query the permissions of installed programs. The risk of fee deduction corresponding to the permission list includes sending short messages, making phone calls, connecting to the network, etc. When installing the software, the Android system will prompt you which permissions the application needs to call. Pay special attention to calling SMS permissions and phone prompts to determine whether the application needs to use these permissions.

(3) Delete the garbled SMS MMS.

Scrambled SMS and MMS may contain viruses, and should be deleted immediately after receiving such SMS.

(4) Don't receive unfamiliar files.

When using Bluetooth, infrared and other wireless transmission functions to receive information, you must choose a safe and reliable transmission object. If a strange device requests a connection, it is best not to accept it. Because mobile phone Trojans will automatically search for devices within wireless range to spread themselves.

(5) Don't browse dangerous websites.

For example, some pornographic/pornographic websites are very dangerous, which contain many Trojan viruses. It is very dangerous to browse such websites with mobile phones.

(6) Can you receive the SMS from the operator?

According to the requirements of operators, during the process of charging your mobile phone, you will receive confirmation messages from operators (China Mobile, China Unicom and Telecom), and the charging program will block the contents of these confirmation messages. If the user doesn't receive the SMS sent by the operator (such as Mobile 10086, Unicom 100 10), it is very likely that the mobile phone has been implanted with a charge deduction code.

(7) Carefully select the brush ROM.

The version of Android is updated very quickly, so many experts have made their own Roms. If you want to brush your computer, you should choose the works of trusted ROM developers, and try to choose ROM works with few incidental functions and pure content.

(8) Use mobile phone protection software

Choosing mobile phone protection software can achieve the effect similar to computer antivirus software, scan the storage of mobile phone regularly, help filter, release memory and clean up junk files when installing applications, effectively prevent charging programs from running and improve the running speed of mobile phone.