How did the yellow text message know my mobile phone number and my name?

This situation is very common. Your information is leaked on the internet, and some people maliciously harass or find some tricks to cheat money. In this internet age, everyone's information is no longer a secret, and your information has been leaked to many people unconsciously. I have also encountered online fraud. He even knows which school you go to and what your student number is. This is terrible. Be careful not to trust others at ordinary times.

You can blacklist the other person, and his short message will be intercepted by anti-virus software, so he won't receive the short message and will ignore it intelligently.

Enter the antivirus software, find the blacklist, and add contacts. I hope it helps you.