The Problem seems to be that the hackers planted a backdoor in early 2020. So, the security hole was actually patched shortly after release of the security pat

The Problem seems to be that the hackers planted a backdoor in early 2020. So, the security hole was actually patched shortly after release of the security patch. Edit: Source: https://www.heise.de/news/Cyber-Angriff-auf-Uniklinik-Duesseldorf-Shitrix-schlug-zu-4904979.html https://www.heise.de/news/Cyber-Angriff-auf-Uniklinik-Duesse...