How does Apple intercept spam messages?

Mobile phones often receive some spam messages and phone calls, so how does Apple intercept spam messages? Let's take a look ~

How does Apple intercept spam messages? Apple does not support blocking spam messages. It can only set information filtering to classify non-contact information into a separate list. The specific operation steps are as follows:

1. Open the settings of Apple's mobile phone and click the information option.

2. Turn on the switch to the right of the person who filters unknown files.

This paper takes Apple 13 as an example and applies it to ios 15 system.