Home News Stories 2008 December Cryptanalysis Challenge 2008
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Cryptanalysis Challenge 2008

Can You Crack a Code?
Try Your Hand at Cryptanalysis


Last year, we challenged you to crack a code created by the “cryptanalysts” in our FBI Laboratory, who are experts in breaking ciphers of all kinds.

Tens of thousands of you did so.

Are you ready for round two? We hope so. But bear in mind, this year’s code is slightly more difficult.

And if you’re a youngster, we suggest you start with the code on our Fun & Games page.

Good luck!


- A 400-Year History of Cryptanalysis
- The Zodiac Killer Case