Home News Stories 2009 December Cryptanalysis Challenge 2009
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Cryptanalysis Challenge 2009

Can You Crack a Code?
Try Your Hand at Cryptanalysis


We’ve challenged you before—in November 2007, December 2008, and May 2009—to unravel a code and reveal its secret message like the “cryptanalysts” in our FBI Laboratory.

In our latest quiz, we’ve switched gears a bit, using pictogram symbols based on Native American motifs. And with more than 50 words to decipher, it’s our longest one so far.

For the first time, we’re also posting the answer (see the bottom of this page) in case you are stumped. We ask, however, that you not post the solution on the web so that everyone can have a chance to give it a try.

Once again: If you want a primer on basic cipher systems and how to break them, see the article “Analysis of Criminal Codes and Ciphers.”

Good luck!

Cipher of Pictogram Symbols Based on Native American Motifs in Cryptanalysis Challenge of December 2009

Sorry, but cracking this code doesn’t guarantee you a job with the FBI! But do check out careers with us at FBIJobs.gov.

The answer

To learn more about code-breaking in the FBI: