Event | Events | 27 March 2026 - 6:00 pm | ESIEE Paris
The fifth HackDay, organised by students at ESIEE Paris
Un challenge de cybersécurité international
What is HackDay ?
Created by students in 2022, HackDay is a cybersecurity challenge open to all higher education students worldwide. The aim is to offer a Capture The Flag (CTF) event designed by students, for students. The theme for this year’s event was the 2000s.
A two-stage challenge
1. Virtual qualifying round
Comprising between four and six pupils, the teams compete to qualify by completing challenges on a dedicated online platform.
2. In-person challenge final
The 25 teams that have solved the most challenges and scored the most points then go through to the final.
The final took place at ESIEE Paris on 27 March at 6 pm, featuring 24 hours of non-stop challenges.
The 2026 event was a real success, featuring:
1 200
participants
58
countries represented
25
qualified teams
Congratulations to the winning teams:
1st Sanstup - France
2e Dacia Team - Romania
3rd (joint) UVT CTF - Romania & Ynov Cyber Crew - France
Lectures given by experts
HackDay is also an opportunity to attend talks led by cybersecurity experts. A wide range of topics are covered throughout the day. These talks are free and open to everyone.
▶ View the conference programme
This student event was supported by :
Orange Cyberdefense - CGI - Thales, sponsors de l’événement
CVEC - ESIEE Paris - Université Gustave Eiffel - Rootme Pro - Geoguessr - Redbull - CyberV - Hack'Olyte - Altered Security, partners du HackDay
