https://www.bleepingcomputer.com/news/security/tiktok-fixes-flaws-allowing-theft-of-private-user-information/ > ByteDance, the tech firm behind TikTok, has fixed a security vulnerability in the video-sharing social networking service which could have allowed attackers to steal users' private personal information. > TikTok has servers in the countries where its iOS and Android apps operate and it is used for sharing short-form looping mobile videos of 3 to 60 seconds.