@article{behavioralcanariesauditingprivateretriev,
  title = {Behavioral Canaries: Auditing Private Retrieved Context Usage in RL Fine-Tuning},
  author = {Chaoran Chen and Dayu Yuan and Peter Kairouz},
  year = {2026},
  eprint = {2604.22191},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.22191},
}