What is Alipay SMS verification code?

According to your meaning, you didn't use Alipay to buy anything at all, did you? If you have Alipay, and it is bound by this mobile phone number, but you didn't buy it yourself, it may be that your Alipay has been stolen, so you should go to the bank and lock it up immediately. The verification code will be invalid in the future, and the thief should not be able to buy it.