@article{pimrefdetectingandexplainingeverevolving, title = {PiMRef: Detecting and Explaining Ever-evolving Spear Phishing Emails with Knowledge Base Invariants}, author = {Ruofan Liu and Yun Lin and Silas Yeo Shuen Yu and Xiwen Teoh and Zhenkai Liang and Jin Song Dong}, year = {2025}, eprint = {2507.15393}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2507.15393v1}, }