How to set a blacklist of mobile phone numbers and refuse to receive intercepted messages?

Open the "Security Center" and click "Harassment Interception".

In "harassment interception", you can see the number of SMS and incoming call interception. Click "Settings" to set interception rules, black and white lists, etc. Click on the "blacklist number" here. Open the "blacklist" and find the mobile phone number that intercepts SMS and incoming calls. You can add a new number and edit the number at the same time, or you can intercept only messages or incoming calls, or all of them.