My name is on all the junk messages I have received recently. What's the matter?

Because personal information is leaked.

With the advent of the information age, many enterprises need a large number of mobile phone numbers to carry out advertising business. Some IT personnel use technical means to steal a large amount of personal information from networks and databases (such as computer viruses and Trojans, which are malicious programs, you can tell by their names) and sell them to enterprises or salespeople.

The latter is used for advertising and business development, just like the yellow pages of the telephone. If you send it, you don't have to send it. Hackers and spies are actually a kind of people, just some technicians. Because their behavior is similar to that of spies, and they are also very vivid, which has been the case in previous years. However, because ordinary people generally look at the problem superficially, or people with ulterior motives make a fuss about it, or take it out of context after hearsay, which causes people's misunderstanding and fabrication.

Personal information mainly includes the following categories:

1. Basic information. Personal basic information, including name, gender, age, ID number, telephone number, email address, home address, and sometimes even relatively private personal basic information such as marriage, belief, occupation, work unit, income, medical record and birth.

2. Equipment information. Mainly refers to the basic information of various computer terminal devices (including mobile and fixed terminals), such as location information, Wifi list information, Mac address, CPU information, memory information, SD card information, operating system version, etc.

3. Account information. It mainly includes online banking accounts, third-party payment accounts, social accounts and important email accounts.