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---
weight: 50
title: Easy Anti-Cheat
---
# Easy Anti-Cheat
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Sometimes, seemingly randomly, you can get an EAC error during the VRChat startup/login screen. It looks like a message box, with the title "Anti-cheat Error", no actual message text, and a single button labeled "Quit".
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**We are still trying to determine the cause.**
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The following sections do not fix the issue, but are still kept on the wiki to dispel rumors and record research.
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## (Outdated) glibc dt_gnu_hash
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Previously, we believed it to be related to an incompatible glibc version. However, upon further testing, this turned out to be insufficient.
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In other games with EAC, getting past the EAC splash screen had required glibc to be built with a specific flag to work.< sup > [1],[2]< / sup > (`--hash-style=both`)
[1]: https://github.com/ValveSoftware/Proton/issues/6051
[2]: https://www.phoronix.com/news/Glibc-2.36-EAC-Problems
Flatpak Steam includes this flag, however Flatpak Steam is not recommended for VR.
As of 2024-02-09, Arch Linux no longer ships with this flag.
- Arch users could use this EAC-specific glibc from the AUR: https://aur.archlinux.org/packages/glibc-eac
- Gentoo users could enable the fix using the `hash-sysv-compat` USE flag on `sys-libs/glibc` .
To reiterate, this glibc flag does _not_ appear to fix VRChat's particular flavor of EAC failures.
