How do excellent schools receive verification codes?

If the short message on the network can be received, or sent by the study tour. No one else can.

function

Prevent malicious password cracking, ticket brushing, forum flooding and page brushing.

Effectively prevent hackers from constantly trying to use specific programs to log in to specific registered users for violent cracking. In fact, using verification code is a popular way for many websites (such as China Merchants Bank's online personal banking and Baidu Community), and we have also realized this function in a relatively simple way.

Although logging in is a bit troublesome, this function is necessary and important for the password security of netizens. However, we still remind everyone to protect their passwords and try to use more than 6 passwords mixed with numbers, letters and symbols.

Don't use a simple password such as 1234 or a password that is the same as or similar to the user name, so as not to steal your account and bring yourself unnecessary trouble.

The verification code usually consists of some lines and some irregular characters, and its main function is to prevent some hackers from stealing password data.