Ubisoft uses machine learning to automatically detect cheaters in Rainbow Six Siege by analyzing players' in-game behavior during matches. A system called MouseTrap specifically identifies console players who use keyboard-and-mouse input devices instead of a controller, while the Data Ban system flags players showing statistical patterns consistent with cheat software.

The Data Ban system was upgraded to a machine learning model in 2024 for Rainbow Six Siege, vastly increasing the number of behavioral data points analyzed per player per match and resulting in a reported meaningful increase in cheater detections. MouseTrap, launched in April 2023, ran in 'shadow mode' for several seasons before applying penalties — collecting data to minimize false positives. When detected, MouseTrap applies escalating penalties: early versions added input delay, and as of Y9S4 (late 2024), players detected three times are routed into PC matchmaking pools for 90 days. Ubisoft reported MouseTrap reduced detected console input spoofers by 78% on launch. A Y9S4 update to the underlying AI model further reinforced accuracy and reduced false positives, and Ubisoft confirmed it is actively expanding MouseTrap's AI capabilities. Ubisoft also uses the third-party anti-cheat software BattlEye alongside its own custom systems.