How does Apple block spam messages?

Apple blocks spam messages. First, click Settings, click Information, turn off the switch of iMessage information here, and turn on the switch of filtering unknown senders. Spam messages refer to messages that users don't want to receive without their consent, or messages that users can't refuse to receive according to their own wishes.

Spam SMS operation means

At the end of August, 2065438+03, mobile phone user Xiao Zhao received an advertisement spam message, but the sender's mobile phone number could not be reached. Most of these spam messages, which are displayed as mobile phone numbers by senders, are sent by computer operation using some special SMS sending equipment.

The reporter went to an electronic equipment city in Zhongguancun, Beijing, where he could buy a short message transmitter at will. The company's technicians told reporters that the use of this short message sender is very simple, just insert the mobile phone card into the short message sender.

Connect the computer, install the software in the CD-ROM, and then you can input the short message content and import the mobile phone number at will through the computer to send group messages. In addition to manually entering the mobile phone number, the software will automatically send messages according to the entire mobile phone number segment.