In recent days, there have always been many incidents of user privacy leaks, and today's headlines have also been hit by the noise of doubts. In fact, the accurate recommendation of Toutiao does not obtain user privacy, but adopts a careful algorithm mechanism. Let us see how the author analyzes it, shall we? In the era of big data, users are extremely insecure about nowhere to place their personal privacy. In recent years, the 315 exposure of some user privacy leaks, and even the illegal sale of citizen information, can be described as shocking! The corresponding user privacy protection proposals adopted by the two sessions every year are gradually improving the corresponding

legal protection boundaries. Content recommendation engine and personalized customization Thousands of people and thousands of faces have been adopted by many well-known APPs since Toutiao became popular today. However, the relationship between phone number list users and the information flow platform is somewhat delicate. Some users not only enjoy the convenience brought by the App through data collection, but also worry about the "trouble" caused by overly precise recommendations. In late March, there were some doubts on the Internet that catering O2O platforms such as Ele.me and Meituan takeout had eavesdropped on user privacy through recording permissions.

Ele.me and Meituan officials denied it, and believed that the use of audio recordings to extract keywords to recommend local goods and services is a "groundless guess", and the corresponding technical conditions have not yet been met. Almost at the same time, Toutiao was not immune to similar doubts and rumors. The general description is usually like this - "My friend and I were talking about xxx yesterday, and Toutiao recommended xxx to me the next day"; "I Just watched xxx on a certain App, and Toutiao recommended xxx to me the next day, etc. Some users also brought into the "self-fulfilling prophecy" of whether Toutiao also eavesdropped on users' privacy through