Security
by Kilhaden
Security adds locks and a keypad that protect buildings and valuables from other players and from mobs.
What it does
Security adds blocks that guard a base against unwanted access. A keypad is placed on a door or container and is used by right-clicking it to enter a numerical passcode once a keycode has been set. A correct entry makes the keypad emit a redstone signal for 3 seconds, and that duration can be changed in the config through keypadBlockAutolockTime. The wiki lists everything the mod includes.
Security runs on Fabric and is needed on client and server, so the server and every player must install it. Files exist for 1.20.1, 1.21.1 and 1.21.4, and the latest file is 1.21.4-0.1.6 on the beta channel, released 2026-09-13. The code is covered by All rights reserved, so the mod is not open source.
Key features
Passcode keypad
A keypad is set up with a numerical keycode and opened by right-clicking, which keeps unwanted players out of a locked block.
Redstone output on success
A correct entry powers the keypad with redstone for 3 seconds, so it can open a door or trigger a circuit.
Adjustable signal time
The 3-second signal length is set through the keypadBlockAutolockTime option in the config.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Keypad Lock is an open source Fabric mod under the GNU Lesser General Public License v3.0 only, for 1.21.4 – 26.2 and also client and server. Sylcurity is open source under CC0 1.0 Universal and runs server-side only, for 1.21.6 – 1.21.11, so players join without installing it. Ward Watch is open source under CC0 1.0 Universal, client and server, and targets 1.21.11.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Security | Fabric | 1.20.1 – 1.21.4 | Client and server | 2026-09-13 |
| Keypad Lock | Fabric | 1.21.4 – 26.2 | Client and server | 2026-06-20 |
| Sylcurity | Fabric | 1.21.6 – 1.21.11 | Server-side only | 2026-02-01 |
| Ward Watch | Fabric | 1.21.11 | Client and server | 2026-05-16 |
Questions
Does Security need Fabric API?
In the catalog
Security is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 17,979 mods support Minecraft 1.21.4.
Similar mods
What the author says
Adds security features to protect your buildings, valuables, and yourself from threats. Check the wiki to see everything this mod includes: wiki.
Official listing
- Modrinth page
- modrinth.com/mod/security
- Owner
- Kilhaden
- Published
- 2023-06-17
- Updated on Modrinth
- 2026-09-13
- Facts verified
- 2026-10-15