Why do you want to send a text message when you log in to vivo account with one click on your mobile phone number?

The reason is to verify the user's identity and prevent malicious login.

According to the query of X Science and Technology Network, the reason why you need to send a short message when the mobile phone number logs in to vivo account with one click is to verify the user's identity and prevent malicious login. By sending a verification code to the mobile phone number filled in by the user, the mobile phone number entered by the user is verified to confirm whether the mobile phone number is consistent with the mobile phone number registered by the user, so as to verify the identity of the user and prevent malicious login.

Mobile phone number, also called mobile phone SIM card, includes 1 1 digit, which is a complete mobile communication terminal device. Whether it is GSM or CDMA, there will be a mobile phone number when "accessing the network". Mobile phone number is a kind of "smart card". According to the GSM standard, it can be inserted into any GSM standard mobile phone, so as to achieve the effect of "use with the card".