After the rice painter is certified, it can be deleted.

After the real-name authentication of mobile app, it can only be deleted unless the real-name authentication is cancelled. If the app is not logged off and uninstalled, it will not be deleted, and a personal information resource pool will be stored.

You only said that you deleted a part, but you didn't cancel your account. You can't register.

After you register in the app, you will generally go through such a process: 1. User registration, background access to user information and stored in the background database, but generally you will be authorized when registering, most people will not read the user agreement. It's easy to leave a pit here. 2. In the user retention stage, the background system does user behavior analysis, mainly in the way of burying points, which can be refined to when you log in, which module you clicked and how long you stayed. Based on this information, you can do user portrait analysis, maintain, retain, transform and recall users. 3. When the user logs off, the background will mark whether your status is valid. Even if you log out, your personal information will not be deleted directly in the background. User information is very valuable. If you have your mobile phone number, WeChat and other contact information, the value will be even greater. On the one hand, developers can recall lost users, such as calling and texting you discounts. They can also use the data for various analysis and backtesting. Some unscrupulous merchants will sell your information directly to third parties.