ProPILE, a novel probing tool designed to empower data subjects, or the owners of the PII, with awareness of potential PII leakage in LLM-based services. ProPILE lets data subjects formulate prompts based on their own PII to evaluate the level of privacy intrusion in LLMs.

This is valuable to garak in multiple ways, including ability to detect PII, and ability to compose prompts eliciting PII

https://arxiv.org/abs/2307.01881