Is the delayed reception of SMS verification code intercepted?

Generally speaking, there are two reasons for the delay in receiving SMS verification code:

First, the user's personal problems:

① Bad signal: The user's mobile phone is in an unstable and weak signal environment, and there is no signal, which leads to SMS delay.

② Mobile phone failure: There are some individual users, such as mobile phone network failure or going abroad. In these cases, the user will receive the verification code message very slowly, or even fail to receive it.

Second, the problem of SMS verification code interface for enterprise access:

At present, the SMS verification code function of Internet products is the SMS verification code interface of third-party SMS service providers. However, at present, there are many companies providing SMS verification code interface services in the market, and some Internet product companies choose to cooperate with service providers with insufficient strength, which is not perfect in experience and technology, and the application channel resources are not too high.