The German newspaper Der Spiegel revealed that the software company behind TeamViewer was compromised in 2016 by Chinese hackers. Chinese state-sponsored hackers used the Winnti trojan malware to infect the systems of the Company. According to the company, it was targeted by the hackers in autumn 2016, when its experts detected suspicious activities were quickly blocked them to prevent major damages. The gang is financially-motivated and was mostly involved in cyber espionage campaigns. The hackers were known for targeting companies in the online gaming industry, the majority of the victims is located in Southeast Asia.”]
Source: https://securityaffairs.co/wordpress/85733/hacking/teamviewer-2016-hack.html