About
AbdusselamKarahan
Cyber Security Researcher · Isparta, Türkiye
Open to work
whoami
I'm Abdusselam Karahan, known as Abdü in the industry. I originally graduated with a degree in Physical Education and Sports Teaching, but my passion for technology led me to cybersecurity. As part of the Yavuzlar Team established under the Cyber Homeland initiative I worked hands-on in web application security, taking an active role in identifying and remediating vulnerabilities. Currently, I am backing my hands-on background both academically through Management Information Systems and through international certification processes.
Experience
- Jun 2025 — Sept 20254 mos
IT Personeli
BLADECO YATIRIM A.Ş. · Tam zamanlı · Ofiste
Supported the company's IT infrastructure and end-user operations in Gönen, Isparta.
- IT Support
- Networking
- Aug 2024 — May 20261 yr 10 mos
Cyber Security Researcher
Yavuzlar · Tam zamanlı · Uzaktan
Worked on web application security projects in the Yavuzlar Web Security and Software Team, founded under the Siber Vatan programme and focused on web security and software development.
- Web Application Security
- PHP
- Software Development
- Apr 2023 — Jun 20233 mos
Trainee
Yetkin Gençler (YetGen) · Program
Completed a 12-week 21st-century competencies programme covering effective presentation, teamwork, career planning and financial literacy.
- Teamwork
- Presentation
Education
- Oct 2025 — Present
Anadolu Üniversitesi
Bachelor's — Management Information Systems
- Jan 2021 — May 2025
Burdur Mehmet Akif Ersoy Üniversitesi
Bachelor's — Physical Education and Sports Teaching
Skills
Web App Sec
- OWASP Top 10
- API security
- Auth & access control
- PHP code review
- Burp Suite
Red Team
- Penetration testing
- Network security
- Linux
- Active Directory basics
- Privilege escalation
Licenses & certifications
- Dec 2025
API Security Fundamentals '25
APIsec University
- Jul 2024
Siber Vatan Bootcamp
Siber Vatan
- Feb 2024
Sızma Testi
BgTek Cyber Security
Credential ID A08ABF32621E5B5
- Dec 2023
Beyaz Şapkalı Hacker
Cyrops
- Aug 2023
Linux Unhatched
Cisco
- Aug 2023
Introduction to Cyber Security
Cisco
- Jul 2023
Ağ Temelleri
BTK Akademi
Credential ID Ko9fLOGgE2
- Jul 2023
Temel Ağ Teknolojileri
BTK Akademi
Credential ID D2xh1keXdy
- Jul 2023
Turkcell Geleceği Yazanlar
Turkcell
- Jul 2023
Yetkin Gençler
Yetkin Gençler
Credential ID 95322215285988
Contact
abdusselamkrhn@gmail.com