CyberBattle of Estonia 2025 finalist
Reached the finals of the national CyberBattle of Estonia competition.
About
I’m Nikolai Harhan, a student focused on cybersecurity, competitions, and sharing knowledge. I enjoy diving deep into systems, building resilient solutions, and helping others explore the same territory. This page tracks a few defining moments so far.
Outside of classes and competitions, I run workshops and learn in public — always aiming to combine curiosity with clarity.
Enrollment into TalTech
Started studies at TalTech (Cybersecurity).
ECSC Finals
Participated in the Estonian qualifiers finals for ECSC.
Graduation with honors
Finished high school with honors.
Junior Lecturer, Enerhack
Delivering lectures and workshops as part of the Enerhack team.