this post was submitted on 12 Jul 2026
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Privacy

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EDIT: We have at least one user claiming that EAC and BattlEye can NOT see what programs are running on your computer via proton on Linux.

EDIT 2: According to brucethemoose@lemmy.world with comment https://lemmy.world/comment/24738141

"Yes and no.

If you run task manager or something in Proton? It just shows Proton processes:
ImagePlaceholder

But all linux process, and tons of information about them, are readable in the /proc directory. They’re just files, accessible to the program.

Try ls /proc yourself.

There’s nothing stopping anti cheat from checking that, if it’s configured to do it.

Which is pretty dang convincing to me.


If I have a good understanding, the Symlinks that Proton uses allow the games to view nearly your entire drive and see what software is running? Because Proton is explicitly NOT a virtual machine and merely a translation layer for Windows applications to run on Linux?

The reason I like to ask is because this is the general consensus, that Proton applications are not secure, but when searching online it doesn't explicitly state anywhere if the games with EAC or BattlEye are capable of spying on Linux users. So I'm looking for confirmation on this.

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[–] AcornTickler@sh.itjust.works 30 points 3 weeks ago (1 children)

It does not matter what games you are running or whether they have anti-cheat. If you are running a program without any sandboxing, they can access everything on your system that your user has access to.

Steam launches games (doesn't matter if you use Proton or they are running natively) as a subprocess and if Steam itself is not sandboxed, those games will also not be. While the symlinks may be abused for this, Wine also gives access to running apps by mounting your Linux root folder as the Z drive (similar to C or D drives you may have already seen).

Running any untrusted software on your system (particularly proprietary ones like most games), you should be mindful of associated privacy risks.

I also wanna address one thing about the particular games you mentioned: EAC and BattlEye run with elevated privileges on Windows. This means it can access and modify things on your system that your normal user can't, like changing core system parameters (and even BIOS). On Linux, though, they run as your own user with regular privileges. This gives them access to your system only as much as any other app you are running. This is the key reason why some game developers don't let you play their online games on Linux, even when the anti-cheat system they use explicitly support it.