The Sunburst hack was massive and devastating – 5 observations from a cybersecurity expert

So much remains unknown about what is now being called the Sunburst hack, the cyberattack against U.S. government agencies and corporations. U.S. officials widely believe that Russian state-sponsored hackers are responsible.

source https://techxplore.com/news/2020-12-sunburst-hack-massive-devastating-cybersecurity.html