Where do spam messages and harassing calls received by mobile phones come from? How to intercept quickly and effectively?

Where do spam messages and harassing calls received by mobile phones come from? The mobile phone number must have been obtained by the sales team through some channels. As for how to get it, there are only several possibilities:

1. In some e-commerce or supply and demand platforms, register members, and then personal information is made public. Information, such as checks, may have been public information. Therefore, it is hard to say that we can hide our information well. There are also many young friends who often leave their own information when buying rent on websites and forums in the same city, which is easy to collect.

2, the so-called black industry, selling your personal information, sometimes it is very likely that your information has not been published anywhere, but it has also been bombarded by various telemarketing. In fact, it is possible that your personal information was stolen and sold to various sales teams and even fraud gangs.

3. Mobile phone number login has become the most common login method, and the probability of mobile phone number leakage has greatly increased. At present, most apps support login without an account password, and you can log in easily by using your mobile phone number+verification code. This operation does bring a lot of convenience to our life, but obviously, as personal information, mobile phone numbers are being abused and spread inadvertently.

How to intercept so many harassing messages quickly and effectively?

1. You can install security software with harassment interception. There are custom anti-harassment, such as adding blacklists and keywords, and filling in according to the keywords you receive the most. Then, you can set up night anti-disturb, which is used to intercept information other than contacts.

2. Some of these softwares have the function of reporting. Adding the recognition function can prevent you from receiving similar emails again.

Don't leave your personal phone number on various websites. Find a "double" mobile phone number. Use this number when you need to fill in the mobile phone number, and then set this number to block all or only receive contacts to ensure that the main number receives less spam messages.