https://www.cnbc.com/2018/06/05/facebook-gave-data-access-to-chinese-firm-flagged-by-us-intelligence.html

Facebook has data-sharing partnerships with at least four Chinese electronics companies, including a manufacturing giant that has a close relationship with China's government, the social media company said on Tuesday.

The agreements, which date to at least 2010, gave private access to some user data to Huawei, a telecommunications equipment company that has been flagged by American intelligence officials as a national security threat, as well as to Lenovo, Oppo and TCL.