Oct 27, 2026
Heads of Security reports improved prompt-injection resistance from learned attention gates on two open models
Shilov and colleagues introduce Heads of Security, learned attention gates separating trusted instructions from untrusted content, tested on GPT-OSS-20B and Llama-3.3-70B-Instruct. Their preprint reports improved robustness against adaptive attacks while preserving tested utility; the mechanism depends on externally supplied trust labels and is not an end-to-end authorization system.