Our Expert Authors

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.

Cybersecurity professional dedicated to building secure and resilient digital environments. I specialize in SOC operations, penetration testing, and threat hunting, delivering hands-on security strategies that combine defensive and offensive techniques to protect critical digital environments.

Usman Khalid is a penetration tester focused on web/API security, enterprise network security & Red teaming. He enjoys hacking for fun as well as a profession.

Al-Mubarak Asafa is a penetration tester focused on application and network security, with a strong interest in real-world attack techniques and defensive awareness.