How to protect personal information from being leaked? I just got a mobile phone flow card. I don't need a number. I never tell anyone, and I get harassing text messages. What happened?

When you receive a harassing message, it means that someone has used your number before and revealed too much information. If it is not handled in the formal business hall, it may be that the operator has done business such as advertising promotion. You can call 10086 to cancel the service that can be cancelled, or intercept harassing short messages with your mobile phone. Thank you for your adoption.