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Learn Cybersecurity From Scratch (Udemy.com)

Become a cybersecurity expert that can monitor, detect and prevent cyber threats for companies and organizations

Created by: Zaid Sabih

Last updated August 2026

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What you will learn

  • Build a cybersecurity lab with logs, group policies, and security tools.
  • Understand cybersecurity core concepts, computer networking, TCP/IP, OSI, Wireshark, Nmap, ARP, HTTP/HTTPS, VLANs, firewalls, and Wi-Fi security.
  • Detect and respond to threats using MITRE ATT&CK, Wazuh, SIEM/SOAR, alerts, antivirus, phishing, ransomware, and IR workflows.
  • Protect data and access using CIA principles, hashing, encryption, digital signatures, MFA, IAM, BitLocker, and access controls.
  • Understand endpoint threats, social engineering, Trojans, sandboxing, C2, email security, Tor, VPNs, AI security, and GRC.
  • Find and fix vulnerabilities using Nessus, web security testing, XSS, SQL injection, path traversal, scan analysis, and remediation.
  • Secure web apps and cloud basics by understanding websites, OAuth 2.0, secure web gateways, Metasploitable, and scan results.

How it compares

Against the other 523 rated Udemy courses in Hacking on CourseDuck:

  • Rating4.5 out of 5higher than 51% of them
  • Reviews70#480 of 524 by number of reviews
  • Length10.1 hourslonger than 72% of them
  • Last updatedAugust 2026more recently than 82% of them

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Course Description

Zaid and Maitham teamed up to bring you the best cybersecurity course out there! Combining Zaid's experience in ethical hacking and teaching over 1 million students world wide with Maitham's focused cybersecurity expertise across professional and government environments.


The goal is simple: make complex cybersecurity concepts easy to understand, practical to apply, and relevant to real enterprise environments.


The course is carefully structured for beginners who want to build a strong foundation in cybersecurity while learning how security actually works inside organizations. Concepts are explained clearly and progressively, without assuming any prior technical knowledge. Each topic builds naturally on the last, helping you develop confidence as you move forward.


Rather than focusing only on theory, this course connects concepts to how enterprises operate in the real world. You will learn how companies protect users, networks, applications, and data at scale, and why certain security decisions are made in corporate environments.


Free sample videos are available so you can see firsthand how complex topics are broken down into simple, easy-to-follow explanations.


Key features of the course:

  • Step-by-step video lessons that require no prior cybersecurity knowledge

  • Hands-on labs designed to build practical, job-ready skills

  • Instruction from seasoned cybersecurity professionals with over 10 years of industry and teaching experience

  • Sample interview questions and career guidance for enterprise roles

  • 30-day money-back guarantee


Domains Covered:

  1. Cybersecurity Foundations

    • Build a solid understanding of cybersecurity basics, core security principles, the CIA triad, threats, risks, vulnerabilities, and how attackers and defenders think.

  2. Cybersecurity Lab Setup

    • Set up a practical cybersecurity lab using virtualization, Windows virtual machines, Kali Linux, VMware, and safe environments for hands-on practice.

  3. Windows Security Essentials

    • Explore Windows security administration with PowerShell, CMD, scheduled tasks, security commands, Windows logs, group policies, and failed login investigation.

  4. Networking Fundamentals

    • Understand how networks operate, including TCP/IP, the OSI model, network layers, reconnaissance basics, and the TCP handshake.

  5. Linux for Cybersecurity

    • Get comfortable with Kali Linux, virtual machine installation, the Linux terminal, and essential Linux commands used in cybersecurity work.

  6. Network Scanning & Traffic Analysis

    • Use Wireshark and Nmap to examine ARP, perform network scans, analyze packets, inspect traffic, and understand HTTP, HTTPS, and HSTS.

  7. Network Segmentation & Protection

    • Discover how VLANs, firewalls, and Wi-Fi security work, including WEP, WPA, WPA2, WPA3, and practical wireless network protection.

  8. Cryptography, Hashing & Data Protection

    • Explore hashing, encryption, digital signatures, end-to-end encrypted email, password-protected files, and BitLocker drive encryption.

  9. Identity & Access Security

    • Understand how MFA, identity and access management, and access control models help protect users, accounts, and systems.

  10. Endpoint Threats & Social Engineering

    • Dive into keyloggers, risky USB devices, social engineering attacks, Trojan detection, sandbox analysis, and command-and-control infrastructure.

  11. Security Monitoring, SIEM & SOAR

    • Work with MITRE ATT&CK, SIEM, SOAR, endpoint agents, integrity monitoring, alerts, and security visibility concepts.

  12. Threat Detection & Incident Response

    • Practice understanding antivirus protection, ransomware, brute-force attacks, Wazuh active response, real-time alerts, phishing incidents, and the incident response lifecycle.

  13. Email Security & Phishing Defense

    • Break down email security, phishing techniques, phishing detection, suspicious links, and how to investigate email-based threats.

  14. Web Application Security

    • Explore website and cloud fundamentals, XSS, SQL injection, path traversal, OAuth 2.0, secure web gateways, Metasploitable, and web vulnerability scanning.

  15. Vulnerability Management

    • Gain hands-on experience with Nessus, vulnerability scanning, scan configuration, risk prioritization, remediation, rescanning, and vulnerability management workflows.

  16. AI in Cybersecurity

    • See how AI is used in modern cybersecurity and complete a hands-on AI cybersecurity project from setup to process flow.

  17. Governance, Risk & Compliance

    • Cover the basics of GRC, risk awareness, compliance, identity management, and access control models used in organizations.

  18. Cybersecurity Career Development

    • Build a cybersecurity portfolio, create practical projects, stay updated with security trends, and prepare for career growth.


Throughout the course you'll learn how to use the following tools to achieve the above:

  • Kali Linux

  • Nmap

  • Wireshark

  • Powershell

  • Kali Linux

  • Windows Command Prompt

  • Windows Event Viewer

  • Windows Security Logs

  • Windows Group Policy

  • VMware

  • Wazuh

  • Slack Alerts

  • Nessus

  • Metasploitable

  • Hashing Tools

  • BitLocker

  • 7-Zip File Protection

  • MFA Tools

  • n8n

  • MXToolbox

  • Zscaler Zulu

  • Cisco Talos


Checkout the curriculum and the course teaser for more info!


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Instructor Details

Zaid Sabih

My name is Zaid Al-Quraishi, I am a professional ethical hacker, computer scientist, and the founder and CEO of zSecurity & Bug-Bounty. I am passionate about utilising my skills to improve the security of organisations and individuals by identifying and resolving vulnerabilities in their systems.

I have in-depth knowledge and experience in the fields of ethical hacking & cyber security, and I have helped over 1 million students worldwide on multiple teaching platforms to gain a better understanding of the subject.

My companies, zSecurity & Bug-Bounty, specialise in providing ethical hacking services and managed bug-bounty programs to help organisations identify and remediate vulnerabilities in their systems.


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Reviews

4.5

70 ratings on Udemy

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By Simon Carlos Tsakem on 8/10/2026

good and fluent explanation of different concepts

By Mir on 8/6/2026

It was very practical and understandable so far..!

By Syed Mahdi Masud on 7/30/2026

So far it’s excellent and easy to comprehend

By George Torok-Both on 7/22/2026

Some of the video was blurry and hard to read the address bar to get into VMware download

By Camielle WeetlyGray on 7/20/2026

A great step by step course, making simple for someone like me with no experience.

By Pragathi Shetty on 7/20/2026

You have given glimpses to all major topics which is good but i want to learn it set by step from offensive perspective and defensive

By Okome Jonah on 6/24/2026

i always love to listen to him because he makes difficult courses look simple.

By Coulibaly Emmanuel on 9/10/2026

By Kimberly Khoo on 7/20/2026

By Ramahlapane on 7/13/2026

Showing all 10 reviews on CourseDuck

Read all 70 reviews on Udemy

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Overall Score : 90 / 100