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Challenge Completed!
Started: September 1, 2026, at Noon CET
Ended: September 19, 2026, at Noon CET
The ByteBreach 2026.2 challenge is closed. Thanks to everyone who took part!
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Highlights and memorable observations left by participants during ByteBreach 2026.2:
These participants successfully cracked ByteBreach 2026.2:
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!