Microsoft's Bing search engine has a Sales Promotion Plan, but some people in the industry recently discovered a vulnerability. By modifying the transaction URL, Internet users can even obtain Microsoft's cash return even if they do not shop. microsoft was furious with the announcement of the vulnerability. In this case, the public's cashback account was deleted and he was asked to immediately seal the account. if a retailer participates in Microsoft's cashback programme during product search, Microsoft will display a link at the top of the search results, if the purchase transaction is completed, Microsoft will return some cash to the consumer. microsoft aims to promote its search for Bing-specific products. <br/> however, an industry expert found a technical vulnerability. This person is samire meghani, the founder of the comparison shopping website bountii.com. A few days ago, he posted an article on his blog, the vulnerability is disclosed. <br/> meghani said that when a netizen buys a product, the user needs to submit a webpage to Bing to search for the information. However, by modifying the website, you can report fake shopping transactions to bing as real transactions. this means that network experts can get a refund from Microsoft without buying anything. <br/> meghani said that Microsoft has not found this vulnerability so far, and his cash return account also has $2080. he did not disclose the technical details of modifying the website, but said it was not complicated. <br/> meghani's actions made Microsoft very angry. Her lawyer sent a letter to him asking him to immediately stop publishing the vulnerability. microsoft believes that his behavior provides guidance for other violations of Computer Law. later, meghani deleted his blog post, but it is ironic that this Article can still be viewed in Bing search's webpage cache. microsoft also disabled the returning account of meghani. <br/> in a subsequent article, meghani stressed that she had no intention of defrauding Microsoft, but disclosed a Microsoft Vulnerability in technical deployment, microsoft surprised him by various means to seal his response.