https://www.theregister.co.uk/2018/02/11/winter_olympics_website_downed_by_cyber_attack/

The Pyeongchang 2018 Winter Olympics' website went down just before the event's Friday opening ceremony, thanks to a cyber-attack, and stayed down for about 12 hours.

The outage left users unable to print tickets or view information about the games. Some networks around the games venues also went down.