# Introduce

It is no secret that Internet technology companies collect user data. It may seem like pie falling from the sky for users to use products and services developed by Internet technology companies for free, but behind the scenes users actually need to compromise their various data in exchange.

However, most users are unaware of this. Such a relationship seems to have become a default rule in the Internet era. Users’ behaviors such as searching, purchasing, socializing, and entertaining on the Internet are creating massive data points every moment, and these data will not only be used by Internet companies, but also by various research and consulting institutions, large companies, etc. Data companies and advertising platforms collect and profit from it.

In order to collect more user data, these companies will do their best to make users ignore this fact. For example, most products place "user privacy" and "terms of use" in very hidden positions, using professional and lengthy legal documents. to dissuade users from reading carefully. Or tell the user that if they do not agree to the product reading some permissions, they will not be able to use the most important functions of the product.

Usually Internet technology companies collect user data for the following purposes: advertising, product optimization, and business insights.
