https://www.reuters.com/article/us-hongkong-law-tech/tiktok-quits-hong-kong-as-u-s-giants-suspend-processing-data-requests-idUSKBN2481FC >Chinese-owned social media platform TikTok announced on Tuesday it would pull out of Hong Kong within days, as global tech giants struggle to figure out how to operate in the city under sweeping new security rules imposed by Beijing.