One thing that did happen is there was a bug in the website for a day that really did show you other user's chat history. IIRC some reporting confused this wit

One thing that did happen is there was a bug in the website for a day that really did show you other user's chat history. IIRC some reporting confused this with "Samsung had some employees upload internal PDFs to ChatGPT" to produce the claim that ChatGPT was leaking internal Samsung information via training, which it wasn't.