Roblox is enormous, young-skewing and cross-platform — and its anti-cheat has had to grow up fast to match.
Hyperion: Roblox's anti-cheat
Roblox protects its PC client with Hyperion, an anti-tamper and anti-cheat system. Hyperion is built to make the client extremely difficult to modify or attach exploits to, closing off the script-injection techniques that exploiters traditionally relied on.
Account, device and HWID bans
Roblox enforces at several levels. Minor violations draw warnings and account bans. For serious or repeated abuse — and for users who keep evading account bans — Roblox can apply device-level bans, often described by players as HWID bans. The platform records identifiers tied to the device so that new accounts created on it are caught.
Cross-platform complicates it
Roblox runs on PC, console, phones and tablets. The identifiers available to the platform differ by device type — a phone exposes different values than a Windows PC — so a "HWID ban" does not mean exactly the same thing everywhere. On Windows it can draw on the familiar set: disk, network and registry identifiers, plus firmware values the operating system exposes.
Why some bans are hard to escape
As always, the durability of a device ban depends on which identifiers it leans on. Values that live in software can be changed; values written into firmware cannot be rewritten by ordinary software. A ban built on the firmware layer is the most persistent kind.
The takeaway
Roblox enforcement has moved well past simple account bans. Hyperion hardens the client, and device-level bans target the hardware behind repeat offenders — which is why "make a new account" stops working once a device ban is in place.