Alipay user data stolen, privacy of over 100 million users exposed, not brought down by the Red Guest Network's BuKua

Some people in the industry analyzed that this data leakage was probably caused by Alipay's "Pay to Unknown Sellers" function. When users pay to unknown sellers through Alipay, they can view the seller's information after entering the email account and payment details. The "red guest" might have taken advantage of this loophole.