StruQ and SecAlign Defend Against Prompt Injection

StruQ and SecAlign are two fine-tuning defenses against prompt injection, the top OWASP threat for LLM-integrated apps. They reduce optimization-free attack success rates to around 0% and cut optimization-based attacks below 15%, over 4x better than prior state-of-the-art across 5 LLMs, with no extra computation or human labor.