https://www.cnet.com/news/russian-spies-reportedly-hacked-winter-olympics-2018-washington-post/

We already knew that the opening ceremony of the Winter Olympics in Pyeongchang, South Korea, was hit by a cyberattack. Now it appears we know the culprit: Russian military spies.

The Washington Post reported late Saturday, citing unnamed US officials, that not only had Russian spies hacked several hundred computers used by authorities at the 2018 Winter Olympics, but they tried to make it look like North Korea did it, in what's known as a "false-flag" operation.