My mobile phone information has received a lot of verification codes recently. Will it be harmful if my number is a secondary card?

Mobile phones don't receive verification code messages from websites for no reason. Generally, your mobile phone number is leaked, used by criminals, bombarded by short messages, and constantly sends spam messages such as verification code to your mobile phone number in a short time; The following is a detailed introduction:

1. Generally speaking, the verification number is only valid if it is sent to the corresponding mobile phone for login. If you receive a lot of verification numbers inexplicably, your mobile phone number may be leaked for some reason;

2. Or for some reason, your mobile phone number is bombarded by criminals using short messages, and constantly sends spam such as verification code to your mobile phone number; You can try to use third-party mobile phone housekeeper and other software to set up harassment interception to minimize harassing text messages.