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Introduction to Cybersecurity

introduction9 labs

Start here. No experience needed: learn what cybersecurity is, how computers and networks work, the rules of ethical hacking, your first Linux commands, and capture your first flag.

Labs in this path

  1. 1
    beginner

    What Is Cybersecurity?

    What cybersecurity protects, who it protects it from, and why it affects everyone, not just experts.

    20 min3 tasksfoundations
  2. 2
    beginner

    The CIA Triad: Confidentiality, Integrity, Availability

    The three goals of security: keep secrets secret, keep data correct, keep services running.

    25 min3 tasksfoundations
  3. 3
    beginner

    Common Threats in Plain Words

    The handful of threats behind most real incidents, and the simple habit that defends against each.

    25 min3 tasksfoundations
  4. 4
    beginner

    How a Computer Works

    The parts of a computer that matter for security: the operating system, files and folders, users and permissions.

    25 min3 tasksfoundations
  5. 5
    beginner

    Networks and the Internet

    How computers talk to each other: networks, IP addresses, ports, DNS, and what really happens when you open a website.

    30 min3 tasksfoundations
  6. 6
    beginner

    Ethics, Permission and Safe Practice

    The most important rule in security: only test systems you have clear, written permission to test.

    20 min3 tasksfoundations
  7. 7
    beginner

    Your First Linux Commands

    What a terminal is, why security people use it, and six safe commands to find your way around a Linux machine.

    30 min3 tasksfoundations
  8. 8
    beginner

    Using the Purple Edge Lab

    A guided tour of the lab experience: deploy, open the console, watch the timer, submit an answer, and end the lab.

    20 min3 tasksfoundations
  9. 9
    beginner Hands-on lab

    Capture Your First Flag

    Deploy your first real lab machine, use six simple commands to follow a trail of notes, and capture a hidden flag.

    45 min3 tasksfoundations

Ready to start hacking?

Launch the lab in your browser. Real Kali, Ubuntu and Windows targets, guided step by step. No setup, no VM downloads.

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Updated 2026-11-01

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