NYTimes: Secret Backdoor in Some U.S. Phones Sent Data to China, Analysts Say

Security firm, Kryptowire, discovered that android phones running the Adups backdoor sent information to a Chinese server including messages, contact lists, call logs, and other data. The software manufacturer says its software runs on 700 million devices. 120 thousand phones manufactured by American manufacturer, BLU Products, were effected. It is not clear whether this was part of Chinese intelligence gathering or data collection for advertising purposes.

http://mobile.nytimes.com/2016/11/16/us/politics/china-phones-software-security.html