Well I guess at least it wasn’t due to news footage shot in the events Security Operations Centre displaying critical passwords in the background which I believe happened at a previous similar type of event.
It will be interesting to see the analysis of this one if/when it becomes available. From all accounts they survived this due to the attacker not taking action rather than anything else.
Goes to show you that cyber security will underpin pretty much everything these days.
https://www.nytimes.com/2018/02/12/technology/winter-olympic-games-hack.html