Hack4Krak CTF 2026 is an on-site Jeopardy-style Capture The Flag competition for secondary-school students, held in Kraków, Poland.

The event will take place on 23–24 May 2026 at the UKEN in Cracow, ul. Podchorążych 2, 30-084 Kraków.

Participation is free. The event is aimed at students of secondary schools and is designed to introduce young people to cybersecurity through practical, hands-on challenges. Participants will solve tasks from various cybersecurity categories, compete for points, and climb the scoreboard. The organizers will provide food, talks, a great atmosphere, and prizes for the best teams.

Local schedule:
- 23 May 2026, 08:00–09:30 CEST: Participant registration
- 23 May 2026, 09:30 CEST: Opening ceremony
- 23 May 2026, 10:00 CEST: Tasks are published
- 24 May 2026, 16:00 CEST: End of the competition
- 24 May 2026, 16:00–17:00 CEST: Closing ceremony and awards

The event is made possible thanks to our sponsors:
cyber_Folks and Arkanet

Partners:
CERT Polska, Zerya, University of the National Education Commission in Kraków, XXXI High School in Kraków, Netwrix, Kraków Technology Park, and Fundacja Ambasada Społeczności.