Why do you need to send a verification code on your mobile phone when logging in at an Internet cafe?

The reason why you always have to send a verification code to your mobile phone when logging in at an Internet cafe is:

It may be caused by your network problem. Generally speaking, if you receive a verification code, it is you. This is caused by a network problem. Generally speaking, if this happens, you can contact the customer service above as soon as possible, and then the customer service above should answer the question for you. Generally speaking, it will be with your Network related.