[Sophos]The top 10 unsolved ciphertexts

[igor51]

The top 10 unsolved ciphertexts

For over 12 centuries an intense battle has been fought between the code-makers and the code-breakers. But despite decades of cryptanalysis, there are many ciphertexts which have gone unsolved, leaving us in mystery.

Here's our top ten list, can you solve them?
Source: The top 10 unsolved ciphertexts