Does Apple's mobile phone intercept SMS by default?

1. First, open the Apple phone, click "Settings" on the phone desktop, and then click "Information".

2. Secondly, turn on the switch to the right of "Filter Unknown Senders".

3. Finally, after "Information Filtering" is turned on, the category of "Not in Address Book" is added to the information page, which can filter the information of unknown senders.