How to make the hacked mobile phone number completely unable to send text messages?

1, open the short message, then enter the page to check the content of the received spam message, and then click the details in the upper right corner. 2. After entering the details, if you need to mute the notification of this conversation, just turn on the Do Not Disturb mode below (note: after turning on the Do Not Disturb mode, the SMS sent by this number can be received normally, but there will be no ringing reminder). 3. If you want to completely block this SMS number and not receive such advertising information, you can click the I icon behind the phone number, then choose to block this incoming number, and finally confirm that you choose to block the contact operation (Note: setting a blocked contact is equivalent to adding this number to the blacklist, and you will not receive any SMS or phone harassment from this number in the future.