On Friday—two days after the popular ride-hailing app Didi Chuxing listed on the New York Stock Exchange in a $4.4 billion initial public offering—a new Chinese cybersecurity unit announced that it was reviewing Didi’s data collection policies, citing national security concerns. Soon after, Didi’s app became unavailable in Chinese app stores.
Then on Monday, the Cybersecurity Review Office doubled down, ordering similar reviews into two smaller Chinese tech companies—Full Truck Alliance Co. and Kanzhun Ltd.—both of which also went public in the U.S. in June.
