How does Apple 5s block spam messages?

Step 1: Open the iPhone, find the "Settings" icon, and click Enter.

step 2: in the "settings" option, find the "notification" sub-item icon and click enter.

step 3: after entering the notification center, select "information" in it.

step 4: find "show iMessage reminders for the following people" and select the "show reminders from my address book" option.

Step 5: Add a blacklist shielding function to the new system. Click Settings, select information and click Blacklist.

Step 6: Select Add, and then the system will automatically pop up all your contacts. Select the contact you want to block, and you won't receive calls, messages or FaceTime calls from contacts in the blacklist. However, this function is only for contacts already added in your mobile phone. If you want to add a strange number to the blacklist, you must first save the phone number to the contact before adding it.

Step 7: If you want to remove the blacklist restriction for someone because of misoperation, you can click Edit in the blacklist, and then click the red button to unblock it.

With a few simple steps, your mobile phone will only receive iMessage information in the address book, and spam messages will never enter your mobile phone again.