TeamViewer announced it was the victim of a cyber attack which took place in 2016 although some sources claim that hackers were in the firm’s network as early as 2014.

The data breach was reportedly the result of threat actors exploiting the recently patched Winnti backdoor trojan, a malware first seen used by a group of Chinese hackers that has since been referenced as the Winnti group.

"In autumn 2016, TeamViewer was target of a cyber-attack," a TeamViewer spokesperson told SC Media via email. "Our systems detected the suspicious activities in time to prevent any major damage."

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