OpSec Mod protects your privacy when you play on multiplayer servers. It stops servers from tracking your account, checking your keyboard presses, or seeing what other mods you have installed, and gives you tools to block unwanted data collection.
Answers to common questions about installation, compatibility, and usage.
OpSec Mod protects your privacy when you play on multiplayer servers. It stops servers from tracking your account, checking your keyboard presses, or seeing what other mods you have installed, and gives you tools to block unwanted data collection.
Use OpSec Mod 26.2 for Minecraft Fabric — it is the current release and fully supported. A legacy 1.21.11 build is also available if your launcher is still on that version.
Open the OpSec menu, go to the Protection tab, and turn on vanilla spoofing. Your game will look like plain, unmodded Minecraft to the server so it can't block you for using mods.
Use /opsec to list every command, /opsec info to see all mods the game is watching, /opsec info [mod] for one mod, and /opsec channels to list hidden network paths. You can also click the OpSec button at the top of your server list.
Drop the jar into your .minecraft/mods folder, then launch Minecraft with the Fabric profile. Remove any older OpSec versions first to avoid conflicts.
Yes. If you change rules while playing on a server, leave and rejoin the server to make sure the new rules take effect properly.
OpSec Mod is free and open source. It never collects your personal data and only gives you the tools to protect your own privacy. See our terms and privacy policy for details.