New! (2014-09-29) Mentorship Opportunity for a Select Few!

More about me, what I do and the services I offer:

My CV is available here:

Lately there has been a lot of attention about the Cicada 3301 puzzles, and my work on them, after this article:
The internet mystery that has the world baffled

For more information about Cicada 3301 and my solutions for the 2012 challenge, go to:

If these kinds of puzzles and challenges interest you, you might also be interested in looking at the old GCHQ challenge:
GCHQ: solve the online code, become a real-life spy

My solutions for that challenge are available here:

Note that the GCHQ challenge is a bit more technical in nature than the Cicada 3301 puzzles, so it might not be for everyone. ;)

If you are even more hardcore, take a look at my writeups for pCTF 2011, won by me and my team mates in HackingForSoju:

If you appreciate my writeups, feel free to send me a donation. :)

LTC: LQrsQdgk6uJ4CHQnSjs6yvzaFkebq9MkKP

/ Joel Eriksson <je at clevcode dot org>


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