TikTok is preparing to dismiss a key executive who was tasked with persuading the US government that the company had done enough to address concerns about national security due to its ties to China, according to Bloomberg. Erich Andersen, the American chief legal officer of TikTok and its Chinese parent company ByteDance Ltd., has been engaged in lengthy negotiations with the US government to demonstrate the effectiveness of the app’s efforts to prevent China from accessing US user data. These efforts have not convinced the interagency government commission responsible for app security reviews…