https://www.reuters.com/article/us-china-data-security-explainer/explainer-what-is-driving-chinas-clampdown-on-didi-and-data-security-idUSKCN2ED19Q

China's cyberspace regulator has launched a probe into ride-hailing giant Didi Global, calling for it to stop adding new users and for app stores to remove it, days after it went public in a $4.4 billion New York stock sale.