An executive at social media app TikTok, owned by Beijing-based ByteDance , denied during a US congressional hearing on Tuesday that it has given information to the Chinese government and said that it has taken steps to safeguard US data. Senator Marsha Blackburn, the top Republican on the Senate Commerce Committee subcommittee that held the hearing, said she is concerned about TikTok’s data collection, including audio and a user’s location, and the potential for the Chinese government to gain access to the information. Blackburn pressed Michael Beckerman, TikTok’s head of public policy for the Americas, on whether the company could...