Test your skills on cybersecurity challenges, enhance your knowledge, have fun!
ByteBreach{ }
Start: September 1, 2026, at Noon CET
End: September 19, 2026, at Noon CET
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:
Everyone who cracks the challenge gets their name on the Wall of Fame - and the list is published at the WhatTheStack Conference.
Requirements:
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:
To submit your solution, post it in our submission form with:
ByteBreach{ }
April 5 – May 1, 2026
A numbers station broadcast kicked off a trail through OSINT, steganography and web security.
December 15, 2025 – January 2, 2026
A token-hunting challenge spanning OSINT, cryptography, and web security - with a one-time pad twist.
February 5 – February 26, 2025
The first challenge of 2025 with exciting solutions and great community engagement!
2024
Our inaugural cybersecurity challenge featuring amazing solutions and enthusiastic participation!