TikTok confirms employees improperly accessed journalists' user data in hunt for leaksByteDance says 1 employee quit and 3 others were fired following an investigationByteDance, the Chinese parent company of popular video app TikTok, said Thursday some employees this summer improperly accessed TikTok user data of two U.S. journalists and were no longer employed by the company.After an investigation, conducted by an outside law firm, one ByteDance employee had resigned and three others were fired, the New York Times reported.ByteDance's disclosure could add to pressure TikTok is facing in Washington from lawmakers and the Biden administration over security concerns about U.S. user data.Congress is set to pass legislation this week to ban U.S. government employees from downloading or using TikTok on their government-owned devices.He said the company "will continue to enhance these access protocols, which have already been significantly improved and hardened since this initiative took place.""