CTF start in:
How to Play
1. Register
Create an account and join or form a team.
2. Hack
Browse the challenge board and find vulnerabilities.
3. Find Flags
Retrieve the flag, formatted like flag{.*}.
4. Score
Submit flags to earn points and climb the leaderboard.
Onsite Sessions
Join us in person at the Cloud Native Zurich conference for our dedicated CTF sessions.
Session 1: Kick-off & Intro
Time: 11.06.2026 11:30
Location: Abaton A (3rd)
Get a head start! We will introduce the CTF platform, walk through the basic concepts of Cloud Native security, and answer any initial questions.
Session 2: Wrap-up & Awards
Time: 11.06.2026 14:15
Location: Abaton 4 (3rd)
Join us for the closing ceremony. Time to discuss some solutions, talk about findings, and announce the winners!
Rules
- 1. No Infrastructure Attacks: Do not attack the CTFd platform or underlying Kubernetes infrastructure. Scope is strictly limited to the specified challenge instances.
- 2. No Flag Sharing: Do not share flags, hints, or solutions with other participants or teams outside of your own.
- 3. No Automated Brute-Forcing: Unless explicitly stated in the challenge description, the use of automated brute-force tools against the challenge endpoints is prohibited.
- 4. Team Size: No more then 3 players per team
Prizes
🥇 1st Place
CHF 150 Galaxus Voucher
🥈 2nd Place
CHF 100 Galaxus Voucher
🥉 3rd Place
CHF 50 Galaxus Voucher
What is CTF?
A Kubernetes Capture The Flag is a cybersecurity competition focused on finding vulnerabilities in prepared Kubernetes clusters. Players search through these to discover hidden text strings called flags, which they submit to earn points. This hands-on practice helps engineers learn how to properly secure their real-world environments against attacks.