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v1 BetaBased on Debian 12 “Bookworm”Release: December 2026

CyberSky OS

A lightweight Linux distribution for security professionals. A lean kernel, 300+ pre-installed tools, and access to tools from the Kali, Parrot and BlackArch ecosystems.

Download beta – coming soonRead the docs
CyberSky OS emblem

Overview

CyberSky OS is a Linux distribution for ethical hackers, penetration testers and defenders. It is built on Debian 12 “Bookworm”, with the kernel and system stripped of unnecessary components so it stays small, fast and easy to maintain.

You get a ready-to-use toolkit out of the box, and you can add more tools from other security distributions without installing a heavy second system.

Beta notice. CyberSky OS v1 is in beta development and is planned for release in December 2026. Details on this page may change before release.
BaseDebian 12 “Bookworm”
DesktopXFCE 4
ISO size (target)About 4 to 6 GB
Pre-installed tools (target)300+
ToolingDocker-based
Statusv1 Beta

Features

Lean kernel

Unused components and junk are removed from the kernel and system, so there is less bloat and more speed.

Stable Debian base

Built on Debian 12 “Bookworm”, a proven and well-supported foundation.

Light desktop

XFCE 4 keeps the interface fast, even on modest hardware.

300+ tools ready

A large toolkit is pre-installed, so you can start working right after boot.

Multiple tool sources

Install tools from the Kali, Parrot and BlackArch ecosystems from inside CyberSky OS.

One-command updates

Our custom command updates the system and manages tools in one place.

Docker-based

Tools and labs run in containers for isolation and repeatable results.

Built-in labs

Guided challenge rooms where you practice by solving real scenarios.

What’s inside

Base system Debian 12 “Bookworm”
Kernel Slimmed down: unused components and junk removed for a lighter, faster system
Desktop environment XFCE 4
Pre-installed tools 300+ (target for v1)
Additional tool sources Kali, Parrot and BlackArch ecosystems (see Tool sources)
Containers Docker
Image Live ISO, about 4 to 6 GB (target)

Toolkit categories

Reconnaissance & OSINTWeb application testingNetwork analysisWirelessPassword attacksExploitationForensicsReverse engineering

Tool sources

Instead of shipping three separate systems, CyberSky OS connects to the tool collections of three well-known security distributions. Install only what you need, when you need it.

Kali tools

Install tools from the Kali ecosystem.

Planned

Parrot tools

Install tools from the Parrot ecosystem.

Planned

BlackArch tools

Install tools from the BlackArch ecosystem.

Planned
CyberSky OS is an independent project by SkyAuctus. It is not affiliated with or endorsed by Kali Linux, Parrot Security or BlackArch. All names belong to their owners.

Custom commands

CyberSky OS includes its own command-line tool to update the system and manage tools from every source.

The command and option names below are examples and may change before release.

Update the system

bash
$ skyctl update

Install a tool from a source

bash
# choose a source: kali, parrot or blackarch
$ skyctl install --source kali nmap
$ skyctl install --source blackarch <tool-name>

Search and list

bash
$ skyctl search <keyword>
$ skyctl list --installed

Labs

CyberSky OS includes practice labs in the form of guided rooms. Each room is a scenario you solve step by step, capturing flags as you go. Labs run in Docker containers so they stay isolated from your system.

Linux basics

Commands, permissions and files.

Beginner

Recon & scanning

Map a target and find what is exposed.

Intermediate

Web hacking

Find and exploit web vulnerabilities.

Intermediate

The room list is planned content and will grow after the beta.

Quick start

Once the beta is released, getting started will take a few steps.

  • Download the ISO from the Download section.
  • Verify the checksum to confirm the file is genuine.
  • Write the ISO to a USB drive with a tool such as balenaEtcher.
  • Boot from the USB drive and try CyberSky OS live, or install it.
  • Run the update command to get the latest tools.

Verify the download

bash
$ sha256sum -c cybersky-os-beta.iso.sha256

Download

Coming soon

CyberSky OS v1 Beta

The beta ISO will be available here at release. Planned: December 2026.

Download ISO – coming soonNotify me
Version v1 Beta
Size About 4 to 6 GB (target)
Architecture To be announced
SHA-256 checksum Published with the release

Requirements

Target requirements, to be confirmed before release.

Processor 64-bit CPU
Memory 2 GB minimum, 4 GB or more recommended
Storage 20 GB free for installation
Boot media USB drive of 8 GB or more

Roadmap

  1. v1 Beta – December 2026Lean Debian 12 base, XFCE 4, 300+ pre-installed tools, custom update command.
  2. Tool source integrationInstall tools from the Kali, Parrot and BlackArch ecosystems with one command.
  3. Expanded labsMore guided rooms across web, network and system security.
  4. CyberSky LabIsolated practice environments. Coming soon.
  5. CyberSky ShieldEdge and network defense. Coming soon.

Responsible use

CyberSky OS contains security testing tools. Use them only on systems you own or have clear written permission to test. Unauthorized access is illegal. SkyAuctus is not responsible for misuse.

Need help?

Questions about CyberSky OS or the beta release? Our team is here to help.

Go to SupportEmail us