The Software Running Your Games Might Be the Biggest Threat on Your PC

You spent months saving up for that gaming rig. You spec'd it out, maybe even built it yourself. You know exactly what's inside the case. But do you know what's running inside your operating system every time you fire up a game? Because there's a decent chance you've already handed over more access — to more companies — than you ever intended.

Gaming is one of the few spaces where users routinely accept software terms that would cause absolute outrage in any other context. Kernel-level access. Always-on background processes. Data collection clauses buried in 47-page license agreements. If a random app from the internet asked for this stuff, you'd delete it immediately. But slap a game logo on it, and millions of people click "I Agree" without blinking.

Let's talk about what you're actually agreeing to.

What Kernel-Level Access Actually Means — And Why It Should Scare You

Some of the most popular games on the market — titles like Valorant, Fortnite, and a growing list of competitive shooters — use anti-cheat software that runs at the kernel level. That's Ring 0 in Windows architecture speak, which is essentially the deepest layer of your operating system. Your browser runs in user space. Your antivirus runs in user space. Kernel-level software sits above all of that, with access to hardware, memory, and system processes that normal applications simply can't touch.

Valorant's Vanguard anti-cheat, developed by Riot Games (which is majority-owned by Tencent, for the record), starts running when your computer boots — not when you launch the game, but when you turn on your machine. It's watching before you've even opened Steam.

The argument from publishers is straightforward: cheaters are sophisticated, and catching them requires deep system visibility. That's not entirely wrong. But the tradeoff is enormous. You're trusting a third-party company's code with the most privileged access your computer can grant. If that code has a vulnerability — and all code has vulnerabilities — an attacker who finds it doesn't just own the game. They potentially own your entire machine.

This isn't hypothetical. Security researchers have found exploitable bugs in kernel-level anti-cheat drivers before. In 2021, a vulnerability in Genshin Impact's anti-cheat driver was actively weaponized by ransomware attackers to disable security software. The game itself wasn't even installed on the targeted machines — the driver alone was used as the attack vector.

The Data Collection Problem Nobody Wants to Talk About

Beyond the access issue, there's a quieter problem: what these platforms actually collect about you.

Steam, Epic Games, and console platforms like PlayStation Network and Xbox all gather behavioral data — what you play, when you play it, how long sessions run, what you buy, what you browse in their stores. That's fairly standard for any digital platform at this point. But gaming platforms go further in ways that often fly under the radar.

Epic Games' privacy policy, for instance, allows the company to collect data from third-party sources and combine it with what they already know about you. Steam's hardware survey — which asks for your permission but defaults to participating — pulls detailed specs about your machine. Some anti-cheat systems log running processes, network connections, and hardware identifiers that go well beyond what's needed to catch cheaters.

Console makers aren't off the hook either. Xbox and PlayStation both collect voice data if you use voice commands, track gameplay clips, and share data with advertising partners under certain conditions. The PS5's user agreement is particularly broad about data sharing within Sony's ecosystem.

None of this makes these platforms evil. But it does mean that your gaming setup is generating a detailed profile of you — your habits, your hardware, your schedule — that lives on servers you have zero control over.

How the Major Platforms Actually Compare

If you're trying to figure out who's the least invasive, here's a rough breakdown:

Steam is probably the most transparent of the PC platforms. Valve publishes relatively clear privacy documentation, gives users some control over data settings, and doesn't run persistent background processes with kernel-level access by default. That said, Steam itself runs at startup for most users and is always connected.

Epic Games Store has improved its privacy stance after early criticism, but its ties to Tencent still make some security researchers uneasy. Epic has been more aggressive about data collection in the past, and its anti-cheat (Easy Anti-Cheat) is widely licensed to other games, meaning its reach extends far beyond Epic's own titles.

Xbox / Microsoft benefits from being part of a company that's heavily invested in enterprise security. Microsoft's data practices are more scrutinized and regulated than most gaming companies, which provides some accountability. Still, deep integration with Windows means Microsoft has more visibility into your gaming behavior than any other platform.

PlayStation / Sony operates a mostly closed ecosystem, which limits some attack surfaces. But Sony has had notable security incidents in the past — the 2011 PSN breach remains one of the largest gaming-related data exposures ever — and their data sharing practices are expansive.

Practical Steps to Protect Yourself Without Quitting Gaming

You don't have to choose between playing games and protecting your system. But you do need to be intentional about it.

Keep anti-cheat games on a separate user account or machine if possible. This is the nuclear option, but if you're serious about security, running kernel-level software in a sandboxed environment limits the blast radius of any potential exploit.

Uninstall anti-cheat software when you're not actively playing. Some anti-cheat systems can be removed without uninstalling the game itself. Vanguard, for example, can be disabled — though it will restart when you launch Valorant. Get in the habit of removing these when they're not needed.

Audit your startup programs regularly. Open Task Manager on Windows, go to the Startup tab, and check what's launching automatically. Gaming-related background processes have a way of multiplying without you noticing.

Keep your system patched obsessively. Kernel-level vulnerabilities are most dangerous when combined with unpatched OS flaws. Windows updates aren't optional if you're running this kind of software.

Review platform privacy settings. Both Steam and Epic have privacy dashboards. PlayStation and Xbox have account-level data settings. Spend 10 minutes going through them — you'll likely find a few toggles you'll want to flip.

Use a dedicated email for gaming accounts. Separating your gaming identity from your primary email limits the damage if a platform gets breached.

The Bigger Picture

Here's the uncomfortable truth: the gaming industry has normalized a level of system access and data collection that would be considered extreme in almost any other software category. Publishers justify it with anti-cheat requirements, platform features, and terms of service that most users never read. And because the games are fun — because the experience is genuinely great — players accept the tradeoff without fully understanding what it is.

That doesn't mean you should stop gaming. It means you should game with your eyes open. Know what's running on your machine. Know what data you're generating. Make deliberate choices instead of just clicking through install screens.

Your rig is powerful. Make sure you're actually the one in control of it.