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Muhammad Abdullahi
Muhammad Abdullahi

Muhammad Abdullahi, OSCP+, is an ethical hacker and security engineer. He enjoys breaking into systems (legally) and teaching others to do the same, which is why he founded Guardyk. For any inquiries, feel free to reach out.

10 Tutorials
5.7k Views
Published Tutorials
10 tutorials
Target Fingerprinting for Client-Side Attacks
Ethical Hacking
127
Target Fingerprinting for Client-Side Attacks
Before you launch a client-side attack, you need to know your target. This tutorial shows you how to fingerprint them using Canary Tokens and tracking images to capture their location, browser, OS, and more before you make a move.
Finding and Using Public Exploits: A Practical Guide
Ethical Hacking
192
Finding and Using Public Exploits: A Practical Guide
From recon to root shell, learn how to locate, evaluate, and execute public exploits against vulnerable services. A practical reference for security enthusiasts.
What Are Hosts in Cybersecurity?
Network Hacking & Security
317
What Are Hosts in Cybersecurity?
This tutorial explains what hosts are in cybersecurity, why every network-connected device is a potential attack surface, and how attackers target them. It also covers defensive strategies like host hardening, EDR, patch management, and asset discovery to protect organizational networks.
The Dark Web: A Beginner's Guide to Accessing & Navigating It
Open Source Intelligence (OSINT)
462
The Dark Web: A Beginner's Guide to Accessing & Navigating It
The dark web sounds scarier than it is. In this guide, I show you how to access it using Tor, and take you on a tour of some of the wildest sites hiding beneath the surface of the internet.
Dark Web vs Deep Web: What's the Actual Difference?
Open Source Intelligence (OSINT)
659
Dark Web vs Deep Web: What's the Actual Difference?
Confused about the dark web and deep web? You're not alone. Most people use these terms interchangeably, but they're completely different things. This guide breaks down the actual differences, size comparisons, and what you'll really find in each part of the hidden internet.
Searching for a Trafficked Person Using Open Source Intelligence (OSINT)
Open Source Intelligence (OSINT)
369
Searching for a Trafficked Person Using Open Source Intelligence (OSINT)
Learn how Open Source Intelligence (OSINT) can be used to locate missing or trafficked persons by analyzing publicly available data such as phone numbers, online ads, images, and social media traces. It explains real-world techniques, tools, and investigation strategies that turn scattered digital footprints into actionable leads.
How to Crack Locked PDFs
Ethical Hacking
859
How to Crack Locked PDFs
Learn how to crack password‑protected PDFs using pdfcrack. This concise guide covers PDF encryption basics, how pdfcrack approaches password cracking and choosing wordlists.
How to Hide Data in Plain Sight: Steganography Using Steghide
Digital Forensics
1.3k
How to Hide Data in Plain Sight: Steganography Using Steghide
Learn to hide and retrieve data inside images and other files using steghide. This concise guide covers embedding/extraction, passphrase use, and safe, legal applications.
How to Perform a Wi-Fi Deauthentication Attack
Ethical Hacking Network Hacking & Security
725
How to Perform a Wi-Fi Deauthentication Attack
Learn how Wi-Fi deauthentication attacks work and how targets can be forcibly disconnected from a network. This tutorial explains the concept and demonstrates the process in a controlled environment.
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