The situation is as follows:
The first type: someone enters the same number as your mobile phone number or a few digits short. If they make a mistake, it will be yours.
The second type: fraudulent information, disguised as a base station to send, so that you can hit the virus with one click.
Third, your information may be known and others may harass you with bombing software.
Suggestion: Go to the mobile phone business hall to handle this situation, or call the police directly.