Among the many geopolitical complexities attached to this year’s Beijing Winter Olympics were widespread cybersecurity concerns. Social media became a specific focal point of those fears, as many popular global platforms are typically restricted in China. And yet, with the games now well underground, Olympians are appearing all over social media. Those comfortable with sharing on social media from Beijing have increasingly turned to Chinese-owned TikTok, in particular, while others rely heavily on their teams stateside to post and manage their profiles until they return. Many are doing both. Heeding warnings from Olympic committees across the globe about cybersecurity risks,...