MITRE ATLAS had 16 tactics and 101 top-level techniques when our site last synced it on October 1, 2026. Of those 101, MITRE rates 44 as "realized," meaning someone has used the technique against a production AI system, not a lab target. That number is the best tool you have for comparing courses on AI security testing and adversarial AI, because course outlines are written to sound alike and ATLAS IDs are not. The method: get the lab list, tag each lab with technique IDs, count what is cove...