Mobile phones frequently receive harassing calls, messages, various advertising promotions and fraudulent calls from celebrities. Why?

1. You may have borrowed money from a platform, and your personal information was leaked.

2. Or if you visit websites that you shouldn't, some dangerous websites will steal personal information.

3. Or the phone number contained in the calling card you purchased is already in the advertisement push list (the advertisement push list refers to the target of purchasing resident information and sending advertisements).

Your mobile phone may be infected with Trojan virus, which will send your personal data to the hacker who made the virus, so as to sell the data for profit.

Protecting personal information starts with me.