Lütfü Ceylan
OWASP Project Leader at HackerOne
Nicosia, Cyprus
Summary
🤩
Rockstar🎓
Top SchoolLütfü Ceylan is a security researcher and OWASP Project Leader with six years of hands-on experience specializing in web application security and both server- and client-side attack techniques. As founder of the OWASP Top 25 Parameters project and a speaker at OWASP Global AppSec 2023, he blends community leadership with practical vulnerability research. He has contributed to the security of 75+ web applications—finding and responsibly disclosing over 500 vulnerabilities for organizations including Apple, Oracle, Adobe, Mozilla, the UN and the EU. Founder of the TR Bug Hunters community and an active bug bounty hunter on platforms like HackerOne and Bugcrowd, he also publishes technical write-ups and crafts advanced JavaScript exploit payloads. Based in Cyprus and studying in Warsaw, he combines academic training in cybersecurity with a proven track record of real-world impact and coordinated disclosure.
6 years of coding experience
4 years of employment as a software developer
English Preparatory | B2 to C1, English Preparatory | B2 to C1 at Menedżerska Akademia Nauk Stosowanych w WarszawieHigh School Diploma Mathematic and Physics, High School Diploma Mathematic and Physics at Karacabey Anadolu LisesiBachelor of Science - BSc Cybersecurity Computer Science (Informatics), Bachelor of Science - BSc Cybersecurity Computer Science (Informatics) at Akademia Ekonomiczno-Humanistyczna w Warszawie
Turkish, İngilizce
Github Skills (9)
pentesting10
automation10
vulnerabilities10
vulnerability-detection10
vulnerability-research10
infosec10
vulnerability-scanners10
vulnerability10
security10
Programming languages (1)
Github contributions (5)
lutfumertceylan/mywebsite
Jul 2019 - Apr 2024
Here is the repo where my website is hosted 🧙
Contributions:3 PRs, 619 pushes, 1 branch in 4 years 10 months
hosted
lutfumertceylan/top25-parameter
Apr 2020 - May 2022
For basic researches, top 25 vulnerability parameters that can be used in automation tools or manual recon. 🛡️⚔️🧙
Contributions:2 releases, 2 reviews, 84 commits in 2 years
bugbountyor-toolspentest-toolreconvulnerability-scanners
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