[R] LLMs can threaten privacy at scale by inferring personal information from seemingly benign texts

Our latest research shows an emerging privacy threat from LLMs beyond training data memorization. We investigate how LLMs such as GPT-4 can infer personal information from seemingly benign texts. The key observation of our work is that the best LLMs are almost as accurate as humans, while being at least 100x faster and 240x cheaper in inferring such personal information.

We collect and label real Reddit profiles, and test the LLMs capabilities in inferring personal information from mere Reddit posts, …

beyond data gpt gpt-4 information llms machinelearning observation personal information privacy research scale shows the key threat training training data work