It's interesting how the language around these incidents has shifted to give the impression that cybercommandos have stormed into cyberspace with their cyber assault rifles, when in reality the chances are very high that some university administrator probably downloaded a shady program from a porn site.
Jason from Defcon had an interesting quote about it... "It's not an Advanced Persistent Threat, it's Basic Ass Threat, but you just want your cyberinsurance policy to pay out. Fuck off"
Russia initially compromised the 2018 Olympics with publicly available malware off GitHub.
See: https://www.wired.com/story/untold-story-2018-olympics-destr...