ByteDance, the Chinese parent company of TikTok, used the app to monitor the physical location of US journalists who were investigating the company's access to US user data. The incident has raised concerns about the potential risks of using TikTok and the need for greater regulation. The company's ability to access user data in China has also sparked debate about the implications for national security and the development of AI tools. The incident involves Forbes journalists who were reportedly tracked by ByteDance.