Consequently, IT administrators in these sectors are forced to maintain "Zombie" environments. You will still find hospitals and government agencies running (or "IE Mode" in Microsoft Edge) specifically to keep Silverlight running. It is a testament to how powerful the framework was that companies are willing to risk security to keep it alive a decade later.
Google’s justification for axing Silverlight (and Flash) was security. Silverlight was a "black box." When it ran, it executed code deep in the system. If a hacker found a vulnerability in Silverlight, they could potentially break out of the browser sandbox and access the user's OS. silverlight on chrome
Would require rewriting ~1M lines of C++/C# (Silverlight runtime) to PPAPI, plus modernizing graphics, networking, and DRM. Cost > $10M – not viable for any organization. Consequently, IT administrators in these sectors are forced