Robert Kemp. “Evaluating Prompt Injection Defenses in Large Language Models: A Multi-Model Empirical Study of Security–Usability Trade-Offs”. Journal of Information Technology, Cybersecurity, and Artificial Intelligence 3, no. 3 (May 31, 2026): 43–53. Accessed May 31, 2026. https://www.jitcai.org/index.php/journal/article/view/71.