AI Agents Slip Past Traditional Bot Detectors—Two Simple Mouse Features Reveal Them
The study finds binary human‑bot detectors misclassify up to 39% of AI‑driven browsers as humans, but a three‑class model using just two mouse‑movement features reaches 100% agent recall and 99% overall F1, even under sophisticated evasion. Thus, upgrading existing pipelines with these two cheap signals can reliably block AI agents without overhauling infrastructure.