How does Apple's mobile phone report harassing messages?

Taking iPhone 1 1 and iOS 13 systems as examples, it is very simple for Apple mobile phones to report SMS harassment. The specific operation steps are as follows:

1. First, turn on your mobile phone, enter the SMS interface, and select the filtering option, where you can see the harassing messages you received. Click View.

2. There will be a prompt below the message. Click the blue prompt and select "Delete and report spam messages" in the pop-up dialog box to successfully report harassing mobile phone messages.

For the iOS 12 system of Apple's mobile phone, some new functions have been added, that is, the interface that can handle spam messages and incoming calls. Developers can create application plug-ins through this interface to let users report harassing calls and spam messages. At the same time, Apple mobile phones will also collect these data to the cloud and synchronize them to all users. However, it should be noted that this is not Apple's first-party function, but a third-party function that Apple hopes to build, and it only applies to SMS and phone calls.

It should be noted that this answer applies to most of Apple's mobile phone models.