Why does the mobile phone fill in the verification code and click it out to enter it?

Fill in the verification code on the mobile phone and click it out to enter the picture. This is to increase the security and reliability of the verification code, and to prevent malicious attacks or abuse of the system by automatic programs or robots. There are two main reasons for entering the picture verification code:

1, automatic identification is difficult: the picture verification code usually adopts techniques such as distortion, interference and tilt, which is difficult to be identified by automatic programs or robots. This can effectively prevent malicious programs from automatically attacking the system and improve the security of the system.

2. Manual identification: Picture verification codes are usually pictures containing numbers, letters or graphics, and users need to manually input correct contents. Compared with ordinary text verification codes, picture verification codes are more easily recognized by human beings, because most people can easily identify and input the contents in pictures. By inputting the picture verification code, the system can verify that the user is a real human user, not an automated program or robot. This helps to protect the system from malicious attacks and abuse, and improve the security of user accounts.