BeyondMachines Cybersecurity Challenges

Test your skills on cybersecurity challenges, enhance your knowledge, have fun!

ByteBreach 2026.2

  • Follow the clues - they start right on this page
  • Your goal: find the token in the vault. The token is wrapped in ByteBreach{ }
  • Test your skills in OSINT, cryptography, steganography, signal processing...
  • Join our Discord community for hints and discussions
Challenge Timeline

Start: September 1, 2026, at Noon CET

End: September 19, 2026, at Noon CET

[TODO: first clue goes here]

Awards

Workshop Spot

The first participant to submit the correct hash and a qualifying writeup gets a free spot at our BeyondMachines Cyber Everywhere, AI in Everything Workshop.


Requirements:

  • Correct token found
  • Writeup linked from a publicly accessible URL
  • Must indicate you want the workshop spot when submitting
  • First correct submission wins!
Bragging Rights at WhatTheStack

Everyone who cracks the challenge gets their name on the Wall of Fame - and the list is published at the WhatTheStack Conference.


Requirements:

  • Correct token found
  • Writeup is not required
  • Tell us the name or handle you want published
Honorable Mentions

We hand out our traditional made-up awards for the submissions that stand out - First Blood, most creative detour, most overkill writeup, and whatever else you surprise us with.


Requirements:

  • Submit something memorable - you don't have to finish the challenge
  • A writeup helps us see what you did
How to Submit

To submit your solution, post it in our submission form with:

  1. The token you found
  2. A link to your writeup (website, Google Doc, HackMD, GitHub - anything publicly accessible) - required for a workshop spot
  3. Which award you are going for (workshop spot or bragging rights)
  4. The name or handle you want on the Wall of Fame

Challenge Rules

How to Participate
  1. Start from this page - it contains your first clue
  2. Follow the trail of clues using your security skills
  3. Your final goal is the token in the vault. The token is wrapped in ByteBreach{ }
  4. Document your journey if you want a workshop spot
Important Guidelines
  • No destructive actions: Do not attempt to damage, deface, or disrupt any systems
  • Be ethical: Follow responsible disclosure practices
  • Ask for help: Join our Discord if you're stuck - we'll give hints if people are desperately stuck, but no spoilers!
  • Have fun: This is a learning experience - enjoy the journey!

Previous Challenges

ByteBreach 2026.1

ByteBreach 2026.1

April 5 – May 1, 2026

A numbers station broadcast kicked off a trail through OSINT, steganography and web security.

ByteBreach 2025.2

ByteBreach 2025.2

December 15, 2025 – January 2, 2026

A token-hunting challenge spanning OSINT, cryptography, and web security - with a one-time pad twist.

ByteBreach 2025.1

ByteBreach 2025.1

February 5 – February 26, 2025

The first challenge of 2025 with exciting solutions and great community engagement!

ByteBreach 2024

ByteBreach 2024

2024

Our inaugural cybersecurity challenge featuring amazing solutions and enthusiastic participation!