Keep talking and everybody explodes writeup – OmniCTF 2026 Finals
This is a writeup & guide to the hardware hacking challenge I made, Keep talking and everybody explodes, from the finals phase of OmniCTF 2026. It was pretty fun to create it. It was a challenge by itself to make 14 identical boxes people could solve. The guide and everything else you need to make […]
Claudiu $lot$ writeup – OmniCTF 2026 Finals
This is a writeup for the challenge Claudiu $lot$, an AI hacking challenge I created for the Finals phase of OmniCTF 2026. We are given a Discord bot that has AI in the backend, and a command we can run on the AI, /roll. By running /roll in the dedicated channel for the challenge or […]
A mysterious codex writeup – OmniCTF 2026 Quals
This is a writeup for the challenge “A mysterious codex”, from the qualification phase of OmniCTF 2026. This is an AI hacking CTF challenge. You are given just a Discord bot who is connected to an AI agent in the backend. It can respond, it can run commands in a sandbox and do even more […]
2nd place at Unbreakable Braila
After my SAT exam Saturday morning, I drove from Bucharest to Braila to participate to Unbreakable. It was really fun. … and my brother got the 4th place 🙂 Matei Ferseta 🍁– 12th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President of Vianu Cybersecurity Club – Trainer at Atlantykron – Volunteer at Astrofest, […]
Vianu Cybersecurity Club was present at Parcul Circului educational event September 26-27, 2026
During 26-27 September 2026, at Parcul Circului there was Mommy Hai educational event. Vianu Cybersecurity Club had a presence there, trying to promote what we’re doing at Vianu for kids and teens in Sector 2, Bucharest. We had also Vianu Biologists Club and a robotics club from Vianu. Our friends from Stiinta&Tehnica, Astroclubul Bucuresti, Politehnica […]
I just obtained C-AgAIPen Certification
When I was at DefCon 34 last week, in Las Vegas, I got a proposal to obtain this Certified Agentic AI Pentester status. So, after some gruesome working exam hours, I did it. And I’m proud of it. 🙂 Matei Ferseta 🍁– 12th-grade student at Colegiul Național de Informatică “Tudor Vianu” – President of Vianu […]
Bronze Medal at National Digital Innovation and Creation Olympiad, 33rd edition, Focsani + interesting fact
This week, me and my brother, Stefan Ferseta, won the Bronze Medal at one of the oldest IT Olympiads, national level: Digital Innovation and Creation Olympiad. One cool fact. To support our project, we printed several QR codes and stick them in Focsani city and in the college that hosted the event. In less than […]
1st place Binary Track at Security Summer School, Bucharest Polytechnic University
Saturday, July 25 2026, together with my friend and colleague George Lupu (Vianu Cybersecurity Club) we made a team that won 1st place at Binary Track at Bucharest Polytechnic University Security Summer School. Here is the final pic with all the participants. Can you see me in that crowd? 🙂 Matei Ferseta 🍁– 12th-grade student […]
After the SAT exam, today I sold some of my old toys in Herastrau, at Roaba de Cultura
I sold some old Nerf guns, stickies and others. Still many have to go. Those money will be invested Monday in the stock market. 🙂 Maybe SpaceX or Anthropic. Also, I hope for a good SAT score 🙂 This was a free event organized by an NGO at Roaba de Cultura from Herastrau. Great idea! […]
Promoting IQ Games to 1000 kids on June 1st as volunteer
Yesterday was an awesome day. I was volunteer for StartEvo Association in Parcul Liniei, Sector 6, Bucharest, with the occasion of Child Day, June 1st. Stiinta&Tehnica (Science&Technology Association), our friends, were also here. On June 1st, we celebrated Children’s Day the best way possible – hanging out with tons of amazing kids. When Știință&Tehnica invited […]