DeepSeek 'shared user data' with TikTok owner ByteDance

Since then, multiple countries have warned that user data may not be properly protected, and in February a US cybersecurity company alleged potential data sharing between DeepSeek and ByteDance. DeepSeek's apparent overnight impact saw it shoot to the top of App Store charts in the UK, US and many other countries around the world - although it now sits far below ChatGPT in UK rankings. In South Korea, it had been downloaded over a million times before being pulled from Apple and Google's App Stores on Saturday evening. Existing users can still access the app and use it on a web browser. The data regulator, the Personal Information Protection Commission (PIPC), told South Korea's Yonhap News Agency that despite finding a link between DeepSeek and ByteDance, it was "yet to confirm what data was transferred and to what extent".