What does the verification code sent by bhlive mean?

Is an effective verification code system, by sending verification codes to mobile phones. No matter large websites, especially shopping websites, there is a short message function of mobile phone verification code, which can ensure the safety of shopping more accurately and safely and verify the correctness of users. Some authentication code providers provide SMS service for mobile phone authentication codes. Each website sends a request to the provider's server through the interface, and the server sends random numbers or letters to the mobile phone, and the provider's server verifies the authentication codes uniformly.