TeamViewer said, "the truth of the matter is TeamViewer experienced network issues because of the DoS-attack to DNS servers and fixed them, there is no security breach at TeamViewer, regardless of the incident, TeamViewer continuously works to ensure the highest possible level of data and user protection."
Instead, the company blamed recent account hack claims at the feet of "careless use of account credentials." As we've seen in the last year, countless credentials are now being traded and released online, and coupled with the fact many will use the same passwords across different services, one loose set can lead to the compromise of multiple accounts.
"In addition, users might unintentionally download and install malware programs," the company said. "Yet once a system is infected, perpetrators can virtually do anything with that particular system -- depending on how intricate the malware is, it can capture the entire system, seize or manipulate information, and so forth."