Are FiveM anti-cheats safe? The leak problem, explained
FiveM anti-cheats get leaked and decompiled on cheat forums more often than the marketing admits — and a leaked anti-cheat is a weakening one. Here's what "leaked" actually means, why it matters for your server, and the one architectural choice that sidesteps the problem entirely: having nothing on the client to leak in the first place.
What "leaked" actually means
A client-side anti-cheat ships code that runs on each player's PC — that's how it inspects memory, injected DLLs, and overlays. But code that runs on the cheater's computer can be extracted and decompiled. When that happens, the detection logic ends up on leak forums; several popular client-side products have reportedly had their full source — sometimes including the admin panel — posted or sold there, occasionally for less than a month's subscription. (We frame these as reported, the way third-party comparison guides state them — see the honest comparison for the named rundown.)
Why a leaked anti-cheat decays
Once a cheat developer can read the detection code, they build targeted bypasses for exactly what it checks. Protection drops until the vendor patches, then the cycle repeats — a permanent arms race. An actively maintained tool recovers; an abandoned one stays bypassed. The leak doesn't instantly make a product worthless, but it hands the advantage to the cheater, and the "99.9% protection" badge won't tell you any of this.
The architectural answer: nothing on the client to leak
A server-side anti-cheat runs entirely on your game server. It judges what each player actually does — movement speed, teleport distance, weapon damage, economy transactions — against what's physically possible, all from the server's own authoritative state. Because no detection code ever ships to the player's machine, there is nothing to extract, decompile, or leak, and nothing a cheat developer can reverse-engineer from a server they can't reach. The honest trade-off is scope: a pure server-side design generally can't see external, out-of-process cheats (like DMA hardware readers) that never touch the server. We break this down fully in server-side vs client-side.
Where BlackGuard sits
BlackGuard is pure server-side — no kernel driver, no client install. Detection logic and ban decisions run on your server, so there's nothing on a player's PC for anyone to leak or study. It auto-bans only physically-impossible events (speed, teleport, impossible movement) where a false positive is extremely unlikely, and flags softer signals — unknown resource injection and economy anomalies on ESX and QBCore — for your review instead of auto-banning, so a real player is never banned on a guess. Its optional Vision layer analyzes only visual overlays and flags visual cheats for review (never auto-bans), with captured images auto-deleted after 14 days. Being server-side, it deliberately doesn't chase external memory or DMA hardware cheats — that's the price of having nothing on the client to leak.
Want the product view? See the best FiveM anti-cheat guide or pricing — every detection is on every plan.
FAQ
Do FiveM anti-cheats really get leaked?
Yes — it's a well-known pattern. Client-side anti-cheats ship code that runs on each player's PC, and that code can be extracted and decompiled. Several popular client-side products have reportedly had their source — sometimes including the admin panel — posted or sold on cheat-leak forums, occasionally for less than one month's subscription. That doesn't make them useless, but it's a real factor the 'trusted by thousands' badge won't mention. (Claims here are framed as reported, the way third-party comparison guides state them.)
Does a leaked anti-cheat still work?
Partially, and it decays. Once a cheat developer can read the detection code, they build targeted bypasses for exactly what it checks — so a leaked anti-cheat's effectiveness drops over time until the vendor ships a patch, then the arms race repeats. An actively-maintained tool recovers faster; an abandoned one stays bypassed. The leak itself isn't the end of protection, but it shifts the advantage to the cheater.
Is a server-side anti-cheat safer from leaks?
Structurally, yes. A server-side anti-cheat runs entirely on your game server and never ships detection code to the player's machine — so there's nothing on the client to extract, decompile, or leak. A cheat developer can't reverse-engineer rules that live on a server they can't reach. The trade-off is scope: a pure server-side design generally can't see external/out-of-process cheats (like DMA hardware readers) that never touch the server. See server-side vs client-side for the full picture.
Can BlackGuard's detection be leaked or bypassed?
BlackGuard is pure server-side with no kernel driver and no client install — the detection logic and ban decisions run on your server, so there is no client-side code for anyone to leak or study. It auto-bans only physically-impossible events (speed, teleport, impossible movement) where a false positive is extremely unlikely, and flags softer signals (unknown resource injection, economy anomalies on ESX and QBCore) for your review rather than auto-banning. Being server-side, it deliberately doesn't chase external memory/DMA hardware cheats — that's the trade-off for having nothing on the client to leak.
Are FiveM anti-cheats safe to install on my server?
A reputable one is. The questions worth asking: does it run a kernel driver on your players' machines (more intrusive, more trust required), and has its source been leaked (decaying protection)? A no-kernel, server-side design avoids both concerns — nothing runs on the player's PC and there's nothing on the client to leak. Whatever you choose, layer it with server-side validation and a resource whitelist, and keep it actively updated.
Nothing on the client to leak
$0 today · then $20/mo · cancel anytime