In a post published October 4, 2026, a researcher posting as u/Magga_ described a Counter-Strike 2 prototype designed to link accounts by comparing players’ mouse and keyboard patterns in match demos. The results he reported came from a dataset of more than 1,000 players, not a test across the CS2 population.
How the proposed account matching works
The system creates separate behavioral fingerprints: patterns in a player’s mouse movements and keyboard inputs. u/Magga_ says it compares those signals across match demos and links accounts only when both signals agree. He says the method uses demo data without changing the game client, adding telemetry, or installing a kernel driver.
What the reported results measure
In the dataset of more than 1,000 players, u/Magga_ says the mouse signal selected the correct player every time, while the keyboard signal did so 98% of the time. These figures describe player selection in that dataset.
| Signal | Reported player selection in the described dataset |
| Mouse | 100% |
| Keyboard | 98% |
The researcher says the number of verified pairs of accounts belonging to the same person is small and that he has not tested accuracy on a population the size of CS2. He also says a new account needs several matches before the system can assess it, while shared accounts challenge its assumption that one player is behind each account.
Account matching and enforcement
An account link is a lead for a matchmaking operator to assess. u/Magga_ says the operator would decide what action to take, and suggests gathering additional evidence or using a watchlist before carrying a ban over to a linked account.
