The anti-cheat scans running processes. If it sees a process named after a known public cheat (e.g., osu-helper.exe, Timewarp.dll), you are banned instantly.
A Technical and Ethical Autopsy of the "Open Source" Cheat Scene osu cheat github
Modern cheats fail because of timing. Humans have a reaction time of ~180-250ms. Cheats have 0-5ms. When you hit a triple circle perfectly with 1ms variance, the server flags your replay for manual review. osu! staff are notoriously good at spotting the "robot tapping" pattern. The anti-cheat scans running processes
osu! has a long memory. If you are caught cheating, the community websites (like osu!track, or tournament discords) will mark you as a cheater. You will be banned from official tournaments for life, including the osu! World Cup. Humans have a reaction time of ~180-250ms
The osu! community values fair play and integrity. The game's developers actively work to prevent cheating and ensure a fun and competitive environment for all players. There are official tools and measures in place to detect and prevent cheating, and the community generally frowns upon those who attempt to circumvent these measures.
This is arguably the most destructive cheat. It allows a user to download a top player’s replay file (from someone like mrekk or WhiteCat), strip the player name, and replay it on their own client. The server thinks you just set that score. This leads to leaderboards full of impossible plays with the wrong username.