[pelario]

Are you really curious? If yes you could give some sources about what "you heard", otherwise it is not even fake news...

[unscrupulous_sw]

Looking at https://en.wikipedia.org/wiki/List_of_Chinese_spy_cases_in_t... there's at least two cases that are by professors (Xiaoxing Xi and Yi-Chi Shih).

But honestly the vast majority of the knowledge transfer is happening through more legitimate means. Even the famous Stanford machine learning professor Andrew Ng got poached by Baidu.