Why does Huawei mobile phone automatically receive verification code?

Someone else should have sent your mobile phone number to a website that needs mobile phone verification.

Verification code is the abbreviation of Turing test that can automatically distinguish between computer and human, and it is a public program that can automatically distinguish between computer and human.

It can prevent malicious password cracking, ticket brushing and forum flooding, and effectively prevent a hacker from constantly trying to log in to a specific registered user by using a specific program violent cracking method.