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Dacia Team Wins 2nd Place at HackDay 2026 International Final

2nd Place International Final · HackDay 2026 · ESIEE Paris, France

Dacia Team achieved an outstanding 2nd place finish at the HackDay 2026 international final, held at ESIEE Paris, France! This marked our first major international competition, and we couldn’t be prouder of what we accomplished.

The Competition

HackDay 2026 brought together the best young cybersecurity talent from across Europe for an intense 24-hour Capture The Flag competition. Teams faced challenges spanning:

  • Web Exploitation — Advanced injection techniques and authentication bypasses
  • Binary Exploitation — Memory corruption and reverse engineering
  • Cryptography — Modern crypto attacks and implementation flaws
  • Forensics — Digital investigation and artifact analysis
  • Miscellaneous — Creative problem-solving across multiple domains

Our Journey

The competition started strong, with our team quickly establishing ourselves in the top rankings. Throughout the 24 hours, we maintained consistent progress, solving challenges across all categories and demonstrating the breadth of our skills.

The international atmosphere brought an extra level of excitement and pressure. Competing against seasoned teams from established CTF programs across Europe pushed us to think faster, communicate better, and leverage each team member’s strengths.

Key Moments

  • Early Lead: Solved several web exploitation challenges in the first few hours to establish our position
  • Midnight Push: A crucial breakthrough on a binary exploitation challenge around 2 AM kept us competitive
  • Final Sprint: Coordinated effort in the last hours to maximize our point total
  • Silver Medal: Secured 2nd place overall, an incredible result for our first international final

What We Learned

This competition taught us invaluable lessons about:

  • International Competition: The pace and skill level at international events
  • Team Coordination: Working effectively under extreme time pressure
  • Strategic Thinking: Balancing challenge difficulty with point value
  • Resilience: Pushing through fatigue and setbacks to maintain performance

Looking Ahead

HackDay 2026 has set the bar high for what we can achieve as a team. This 2nd place finish internationally validates our approach and motivates us to keep improving. We’re grateful for this opportunity and excited to bring these lessons to future competitions.

Thank you to the HackDay organizers, ESIEE Paris for hosting, and all the teams that made this such a memorable competition!

— Dacia Team

Teammate Reviews

Filip-Neo Anghel
Filip-Neo Anghel

Backend & Security Layer Developer

HackDay 2026 in Paris was an incredible experience. Competing at the international level pushed us to our limits, and securing 2nd place against such strong teams was a huge achievement for us. The atmosphere at ESIEE Paris was electric, and we learned so much from the other competitors.

Alex Docea
Alex Docea

Security Researcher & Software Developer

This was my first international CTF, and what an experience it was! The challenges were incredibly well-designed, and the pressure of the 24-hour format really tested our teamwork and problem-solving skills. Coming away with silver medals made all the late nights worth it.

Patrick Suster
Patrick Suster

Offensive Security Enthusiast & Challenge Designer

HackDay showed us what high-level international competition looks like. The web challenges were particularly tough, and I'm proud of how we adapted and kept pushing forward. Being in Paris and representing Romania on this stage was something special.

Hardalau Vlad
Hardalau Vlad

Cyber Security Penetration Tester

The binary exploitation challenges at HackDay were some of the most interesting I've tackled. Working with the team under time pressure in an international setting taught me a lot about staying focused and communicating effectively. 2nd place felt amazing!