Imagine this: You’re on Reddit, Hacker News, or some forum, posting with a silly username like GamerCat2025 or SecretCoderX. You think you are anonymous, and no one knows you and so you can freely express your thoughts.

Well, a brand-new research paper just blew that idea apart. It’s called “Large-scale online deanonymization with LLMs” which is a fancy way of saying “figuring out the real person behind a secret online name”.

The researchers include people ETH Zurich and, Anthropic (parent company of Claude), and a research group called MATS and they proved that today’s super-powerful AI chatbots can play detective and unmask people way better than ever before.