New Archestra's OpenAPPA Saturates Two Major Security Benchmarks with a 0% Attack Success Rate

Archestra launched OpenAPPA, an open-source security engine that prevents data leaks from prompt injection or hallucination in AI agents. It achieved a 0% attack success rate on major benchmarks, outperforming Claude Code and Microsoft FIDES. OpenAPPA enforces deterministic policies externally to the agent's execution, balancing strict security with operational utility.