China Vows to Tighten Data Security Controls Over Tech Companies

China issued a sweeping warning to its biggest companies, vowing to tighten oversight of data security and overseas listings just days after Didi Global Inc.’s contentious decision to go public in the U.S. While the statement from China’s State Council on Tuesday was thin on details, it suggests Beijing is preparing to intensify a crackdown on its corporate sector that has spanned everything from property debt and fintech to antitrust issues and now cybersecurity.