“However, though they say they aim to be transparent, the “TeamViewer IT security update” page contains a HTML tag, which prevents the document from being indexed by search engines and thus hard to find.”
TeamViewer runs on over 2.5 billion devices and promised transparency about a breach detected on June 26. Then it hid the disclosure page from search engines. Health-ISAC says Russia’s APT29 is actively exploiting TeamViewer. This is also the company that kept its 2016 Winnti breach quiet because no data was stolen.