Rainbow Six Siege is a long-running tactical shooter with a dedicated competitive scene — and a correspondingly serious approach to enforcement.
BattlEye plus Ubisoft
Siege is protected by BattlEye, the kernel-mode anti-cheat used across many major games. On top of it, Ubisoft runs its own enforcement layer and has steadily added measures over the years to address both cheating and input-spoofing devices.
How detection works
BattlEye loads with the game, monitors memory, scans for known cheats and verifies game code integrity. Confirmed cheating leads to bans. Ubisoft also reviews reports and account behaviour, and runs ban waves so that flagged cheaters are removed in batches rather than one at a time.
Account bans and hardware bans
Most first offences are account bans. Serious or repeated cheating escalates, and Ubisoft applies hardware bans. A hardware ban records identifiers from the physical PC, so a new account on the same machine can be caught. Those identifiers include software-level values that can be changed and firmware-resident values — the SMBIOS UUID, the BIOS serial — that ordinary software cannot rewrite.
Toxicity and other bans
Not every Siege ban is about cheating. Ubisoft also penalises abusive chat and other conduct, with escalating durations. Those are account-level matters; the hardware-ban records are reserved for the serious cheating cases.
The takeaway
Siege enforcement is layered: BattlEye for detection, Ubisoft's policy for escalation. The honest summary is the same as for other BattlEye titles — a hardware ban built on firmware identifiers is the most durable, because firmware is the layer ordinary software cannot change.