Kelyan Yesil

Kelyan Yesil is a passionate cybersecurity professional with a deep focus on offensive security, threat analysis, and vulnerability research. He’s been in the industry for five years, driven by a deep curiosity to understand how things work. It all started with CTFs and hackathons, where he discovered his passion for cybersecurity and the thrill of solving complex challenges. Now, he’s channeling that passion into academics as a student at the “Carol I” National Defense University, where he’s pursuing a degree in Information Systems. With a strong background in penetration testing and red teaming, Kelyan has helped organizations strengthen their security posture by uncovering critical weaknesses and advising on effective mitigation strategies. Known for a methodical yet creative approach to problem-solving, Kelyan enjoys exploring emerging threats and sharing knowledge with the community.
Off the clock, you’ll most probably find Kelyan perfecting an espresso shot.