Yesterday we organized VianuCTF 2025. 430 participants worldwide, 73 on-site
VianuCTF 2025: A Global Cybersecurity Success! The 3rd edition of VianuCTF took place yesterday, Deember 16, 2025, from 9:30 AM to 4:30 PM–seven hours of intense, non-stop work and high-level problem solving. Organized by the Vianu Cybersecurity Club (President: Matei Ferseta), this year’s event reached new heights. Attendance & Reach We had a total of […]
We’re organizing VianuCTF 2025. Tuesday, December 16th. Are you in?
@everyone SecurITy Challenge – VianuCTF 2025 is coming! 🔐💻 Are you into hacking, puzzles, or breaking things just to figure out how they work? Join *SecurITy Challenge – VianuCTF 2025, a cybersecurity competition for students organized by *“Tudor Vianu” National College of Computer Science and the Vianu Cybersecurity Club in Bucharest, Romania. You’ll face Jeopardy-style […]
10th place at Null CTF 2025
Great news. We achieved a fantastic result at Null CTF 2025! Our team (vianu_hack) – Victor-Andrei Trandafir, Robert-Andrei Harabagiu, Tudor Furtuna, Alexandru Hossu and myself, Matei Ferșeta – secured a spot in the Top 10. The competition was really tough. It required intense focus, quick thinking, and seamless teamwork. Every challenge pushed us to think […]
Our team, vianu_hack, ranked #7 at Defence Intelligence of Ukraine National & Hackenproof CTF
Two weeks ago, just after finishing the European Cyber Week CTF, we started this online CTF. Really interesting. My team (vianu_hack) ranked number 7. Honored to be part of it. Matei Ferseta– 11th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President of Vianu Cybersecurity Club – Trainer at Atlantykron – Volunteer at Astrofest, […]
My team won “Best European Team” at European Cybersecurity Week, Renee, France, 2025!
I was honored to be present at a huge cybersecurity event, in Rennes, France (Bretagne). I qualified here in late October 2025. My team mates: 2 Spanish students and one UK student. Unfortunately, the UK one could not come. The CTF was really difficult and fun, but I was minutes away to solve the hardest […]
13th, 5th, 8th and 1st place at DefCamp 2025 competitions
What an awesome event! At the main competition we were 18 finalist teams. Some were national teams from Poland, Slovakia, Italy, Finland, some were adults teams from Google, a top Korean team,,, Out of all the them, 2 teams had members from our Vianu Cybersecurity Club. 🙂 So proud. My team, vianub1tz: Hacking Village at […]
7th Place at CTF@AC Finals, Timisoara, Romania
Thursday, Nov 6th 2025 I left Bucharest by night train towards Timisoara. I participated solo in a team contest. Awesome experience. Meeting a lot of old friends and new friends. Thanks, guys. Looking forward for the next time! I love cybersecurity! Scoreboard Matei Ferseta– 11th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President […]
12th place at Huntress CTF 2025
After being on 5th place for a long time, our team fell on 12th. We were close 🙂 Matei Ferseta– 11th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President of Vianu Cybersecurity Club – Trainer at Atlantykron – Volunteer at Astrofest, Hallo Fest, Sci-Fi Fest, Poli Fest – Pseudo-Owner of Bacon, my cat. […]
3rd Place – B-Sides 2025.10
Great event, organized by Adobe, in Bucharest HQ Matei Ferseta– 11th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President of Vianu Cybersecurity Club – Trainer at Atlantykron – Volunteer at Astrofest, Hallo Fest, Sci-Fi Fest, Poli Fest – Pseudo-Owner of Bacon, my cat. More about me here. mapleleaf.ro
3rd place at European Cybersecurity Week CTF Quals
My team came to the 3rd place in qualifications. My team mates are 3 students, 2 from Spain and one from UK. So, it seems that in November I’ll go to France 🙂 Matei Ferseta– 11th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President of Vianu Cybersecurity Club – Trainer at Atlantykron – […]