Reading apps always pop up to verify.

I want to ask why reading apps always pop up for verification? The reasons for this situation are security verification, advertising verification, preventing screen swiping and user behavior analysis.

1. security verification: In order to ensure the security of the user's account and prevent malicious login or hacker attacks, the reading app may pop up verification codes regularly to confirm the user's identity.

2. Advertising verification: Some reading apps may confirm that the user is real by popping up a verification code, not an automatic program or robot. This can effectively prevent malicious brushing or cheating.

3. Prevent the screen from being swiped: In order to prevent users from frequently clicking or swiping the screen, the reading app may have a mechanism to pop up the verification code to maintain the normal experience.

4. User behavior analysis: Reading an app may collect user behavior data by popping up a verification code, so as to analyze users' interests and preferences and provide users with more personalized recommended content.