It is one of China’s most popular shopping apps, selling clothing, groceries and just about  

everything else under the sun to more than 750 million users a month. 

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But according to cybersecurity researchers, it can also bypass users’ cell phone security to monitor activities on other apps,  

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check notifications, read private messages and change settings. And once installed, it’s tough to remove.

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While many apps collect vast troves of user data, sometimes without explicit consent,  

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experts say e-commerce giant Pinduoduo has taken violations of privacy and data security to the next level. 

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In a detailed investigation, CNN spoke to half a dozen cybersecurity teams from Asia, Europe and the United States  

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