评分 6.5 · 来源：cs.AI updates on arXiv.org · 发布于 2026-04-17
评分依据：Fast, deterministic, non-promptable prompt injection detection via data geometry, pragmatic first-line defense approach
arXiv:2603.11875v2 Announce Type: replace-cross Abstract: Prompt injection defenses are often framed as semantic understanding problems and delegated to increasingly large neural detectors. For the first screening layer, however, the requirements are different: the detector runs on every request and therefore must be fast, deterministic, non-promptable, and auditable.