DEF CON 31 War Stories - Cracking Cicada 3301 - Taiiwo, Artorias, Puck, TheClockworkBird
This talk will explore the ongoing efforts of the CicadaSolvers community to solve Cicada3301’s Liber Primus, a book of elder futhark runes and codes that has challenged cryptographers and puzzle-solvers since 2014. Using our experiences as leaders within the community, we will delve into the cultural significance of the puzzle and discuss the various strategies and techniques employed by members to crack its code, and the story of their struggle to maintain motivation through 9 years of solving one of the most difficult puzzles ever released. Attendees will gain insights into the future of collaborative puzzle-solving and the challenges that the Liber Primus presents for the future of cryptography. This presentation is suitable for anyone interested in cryptography, puzzle-solving, internet mysteries, and the persistence of collaborative communities. No prior technical knowledge or tools are required.

Solving Cicada 3301: Decoding the Internet's Greatest Mystery

The Unbreakable Kryptos Code

Kiro demo International Space Station notifier

Cicada 3301: An Internet Mystery

DEF CON 31 War Stories - Living Next Door to Russia - Mikko Hypponen

The Compass Cipher - Cicada 3301 - Liber Primus

Zig 2026: No-AI Policy, $670K Foundation, Left GitHub & Why Zig Isn’t 1.0 - Andrew Kelley Explains

DEF CON 32 - Inside the FBI’s Secret Encrypted Phone Company ‘Anom’ - Joseph Cox

The Most Mysterious File On The Internet

I Found The $200,000 Missing Lego
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Nicholas Carlini - Black-hat LLMs | [un]prompted 2026

The Hunt for Lux: The Internet’s Most Disturbed User

DEF CON 31 War Stories - Tracking the Worlds Dumbest Cyber Mercenaries - Cooper Quintin

Something is jamming GPS over Europe. Here's what we found

When Cybercriminals with Good OpSec Attack

Searching for The Five

DEF CON 33 - Kill List: Hacking an Assassination Site on the Dark Web - Carl Miller, Chris Monteiro

Why Adam Savage Won't Trust USB Keys

Cicada 3301: The Internet's Weirdest Mystery

