How does the national anti-fraud apl set up SMS interception?

The anti-fraud center application will download the alert list of fraudulent phone calls to your mobile phone. When there is a new call, the mobile phone will match the call number with the number provided by the anti-fraud center App, so as to identify whether the call is a fraudulent call. The early warning number database will also be constantly updated to improve the security function.

However, even if you avoid the harassment of fraudulent phone calls, it is difficult to avoid fraudulent text messages, especially for iPhone users. It is estimated that everyone has received the SMS of "Sexy Lotus Official, Online Authorization", even if it is blocked by SMS, it is useless, because these messages are not sent by SMS, but by iMessage. IMessage is the function of sending and receiving messages through the network, which is somewhat similar to WeChat, except that it is integrated into short messages on "information". When the other party enters your mobile phone number, Apple detects that you have turned on iMessage, and the information will be sent directly through the network, thus bypassing the barrier of "blocking harassing text messages".