How does Apple intercept spam messages?

Click "Unknown and filtered information" in information filtering to intercept spam messages.

Tools/raw materials:

Apple iPhone7

iOS 13.3. 1？

Set 13.3. 1.

1, first open the settings on the phone.

2. Find the information to be input in the setting interface.

3. Click "Unknown Filter Information" in the information interface.

4. Finally, open the button on the right side of the interface menu in the filtering information interface.