How do I install OpenSecurity?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does OpenSecurity work with?

The listing gives Minecraft 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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OpenSecurity

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by MichiyoRavencroft · on CurseForge

⬇ Download on CurseForge

The author built this one for Minecraft 1.21.1 on NeoForge. On other versions it may install and then do nothing.

Open in MC Java Mods Get it on Google Play →

OpenSecurity — Minecraft Java mod, screenshot 1

Adds security oriented components for use with OpenComputers, RFID Cards, MagStrip cards, Alarms and Entity Detectors.

OpenComputers forum post http://oc.cil.li/index.php?/topic/606-opensecurity-1710-oc-14/

Docs: https://github.com/PC-Logix/OpenSecurity/wiki

1.21.1 Builds use OpenComputers: Reloaded

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as OpenSecurity-1.12.2-1.0-93.jar — drop this file into the mods folder
Download size: 599 KB
Download link checked 7 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21