https://www.cnet.com/news/winter-olympics-pyeongchang-cyberattack-hack-internet-wifi/

Reports in January from cybersecurity company McAfee claimed that organisations associated with the Pyeongchang Winter Olympics were targeted by a hacking "campaign." Perhaps unsurprisingly, that wasn't the last cyberattack aimed at the Winter Olympics.

Officials confirmed Sunday that the Winter Games were hit by a cyberattack during Friday's opening ceremony, though they opted not to reveal the attackers.