Why do I have to enter the mobile phone verification code before buying things on Taobao?

This is the anti-theft system of Taobao. When making fast online payment, in order to ensure the security of the fund account, it is necessary to match the bound mobile phone, send a short message to the mobile phone bound by Alipay, and enter the verification code received by the mobile phone, so that the transaction can be successful. It is recommended not to cancel. If you really need to cancel, please log in to Alipay Settings.