Researchers: cyberattack caused disruption to Pyeongchang2018.com and local internet, which grounded drones and more during Winter Olympics’ opening ceremony (Nicole Perlroth/New York Times)

Nicole Perlroth / New York Times: Researchers: cyberattack caused disruption to Pyeongchang2018.com and local internet, which grounded drones and more during Winter Olympics’ opening ceremony 

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