Best Anticheat for ESX Legacy (2026)

ESX Legacy is still the most popular FiveM framework in 2026, and it remains the most targeted one too. Its event-driven economy is straightforward to build on, but that same openness means a cheater with a basic Lua executor can forge money grants, duplicate inventory items, and trigger job callbacks they were never supposed to reach. Choosing the right anticheat for an ESX server is not just about detecting aim hacks; it is about locking every economic event your server depends on.

Why ESX Legacy Creates a Specific Attack Surface

ESX Legacy routes nearly all economy operations through networked events: esx:addMoney, esx:removeMoney, esx:setMoney, inventory give events, job-grade change events, and dozens of custom derivatives that server owners add themselves. In a clean setup these events fire from trusted server-side handlers. The problem is that FiveM's networking model lets any connected client emit events to the server. Without explicit server-side validation on every handler, a cheater can call TriggerServerEvent("esx:addMoney", "cash", 1000000) from a menu and the server will happily process it.

Client-side guards cannot close this gap. A kernel driver or memory scanner running on the cheating player's machine sees what is loaded locally. It cannot intercept a packet that has already left the client and is travelling to your server. Only something running on the server itself can evaluate the call before ESX processes it. This is why server-side anticheat is not optional for ESX, it is the only architectural answer. For a deeper look at how money injection works in practice, see our article on FiveM money cheat protection.

What to Look for in an ESX Anticheat

Not every anticheat that claims ESX support actually covers the economic layer. Before committing to a product, verify it handles all four of these requirements:

• 1. Event firewall with caller validation. Every money and inventory event should be checked for the resource that triggered it, the player's current server state, and whether the call is plausible given recent activity. A raw rate limiter alone is not enough since low-volume injection is common.
• 2. Economy Forensics across sessions. Sudden balance spikes, item counts above loot table maximums, and inventory contents that conflict with job grade should be flagged across sessions, not just in the current one. Cheaters spread injections over time to avoid single-session thresholds.
• 3. Zero player FPS cost. An anticheat that loads a resource on every client adds latency and frame drops. On ESX servers with 64 to 128 slots this compounds fast. Look for a sub-millisecond client agent or no client agent at all.
• 4. Configurable event blocklist for custom scripts. ESX servers carry dozens of third-party scripts, each adding its own events. The anticheat must let you register custom events for monitoring without rewriting the core detection logic.

How Fiveuxe Covers ESX Legacy

Fiveuxe is a fully server-side anticheat with no kernel driver and no ring-0 access. Its 27 detection modules include two that directly address the ESX attack surface: Event Security and Economy Forensics.

The Event Security module sits in front of every monitored server event. When a player fires esx:addMoney, the module checks the calling resource, the player's last confirmed server-side transaction, the time delta since the last money change, and whether the amount falls within a configurable range for the player's job and grade. If any check fails, the event is blocked before ESX ever sees it. The block is logged with a full evidence packet including player identifiers, the raw event arguments, and a timestamp, so you can review it in the web panel or receive it instantly via Discord webhook.

Economy Forensics runs as a background audit layer. It tracks balance trajectories across sessions and compares inventory snapshots against server-side loot tables. A player who accumulates $4 million cash across four separate login sessions without corresponding job payouts will surface in the audit log even if no single event triggered the real-time firewall. This is the layer that catches slow-burn injection and stash duplication schemes that classic event rate limiters miss entirely.

Fiveuxe also integrates the SENTINEL AI security co-pilot, which correlates patterns across the detection modules and surfaces anomalies that individual module thresholds would not flag alone. If Economy Forensics sees a borderline balance spike at the same time Event Security logs a cluster of blocked triggers from the same player, SENTINEL raises the combined signal to a high-confidence alert.

For a broader comparison of how ESX and QBCore differ in their anticheat requirements, the ESX vs QBCore anticheat comparison covers the framework-level differences in detail.

Hive-Mind Bans and Identity Enforcement

Catching a cheater once is only half the problem. ESX servers are high-value targets because a successful economy exploit pays out in in-game assets that can be traded or sold. Cheaters are motivated to return under new accounts after a ban. Fiveuxe's Hive-Mind global ban network shares confirmed detections across 100+ servers in roughly 0.3 seconds, so a cheater banned from one server is rejected at the connection stage on every other enrolled server before they can inject a single event.

Shadow-Link identity enforcement extends that protection across ban evasion attempts. It ties identities across HWID, Discord IDs, IP, and 12 or more additional identifiers. A player who wipes their account, re-installs FiveM, and connects on a new Discord is still matched to their original ban record. For ESX servers where a single economy exploit session can take hours to clean up from the database, preventing re-entry entirely is far more valuable than detecting the cheater again on arrival.

Pricing and What You Get

Fiveuxe starts at $39 per month, with $99 quarterly, $149 yearly, and a $229 lifetime licence. Every tier covers all 27 detection modules including Event Security and Economy Forensics, the Hive-Mind global ban network, Shadow-Link identity enforcement, the web panel, and real-time Discord webhooks, so nothing is held back for a higher plan. There is no free tier and no trial key, because trial access to an anticheat gets farmed and lets cheaters probe which ESX event checks fire before walking away. Checkout is on site and your key is issued as soon as payment clears.

The rating on Trustpilot sits at 4.1 out of 5 across 9 reviews. Given that anticheat is a product most server owners only notice when it is not working, reviews in that range indicate consistent operational reliability. For more context on how this stacks up against alternatives, the best ESX anticheat guide runs through the current options side by side.

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