Tmall didn't buy anything, but it was reminded by SMS.

If you just received the message and there is no case that your account was stolen, then it is possible that a buyer with a similar mobile phone number left the consignee's phone number by mistake and your phone number by mistake. Then every time she places an order in Taobao and leaves the consignee information, the system will send you a message.

However, in order to be prudent, you'd better call Taobao artificial customer service as soon as possible to verify the specific reasons.

Personal inference, for reference only.