The rapid adoption of online chatbots represents a significant advancement in artificial
intelligence. However, this convenience brings considerable privacy concerns, as prompts …

With the rapidly-growing deployment of large language model (LLM) inference services,
privacy concerns have arisen regarding to the user input data. Recent studies are exploring …

Privacy leakage from user queries is a widely-concerned issue in search engines and
chatbot services. Existing solutions based on privacy information removal, obfuscation, and …