Breaking News: Facebook has given at least four Chinese companies access to user data. One has been flagged by U.S. intelligence as a security threat.

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.

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