The Czech Pirate Party has hidden a short message, a so-called acrostic, in the Czech EU election ballots. Pranks like these have a long tradition.
How to tell your loved one where you are, if you are a soldier and not allowed to mention your whereabouts in your letters? A German soldier in the Second World War came up with a steganographic technique.
The animal rights organisation PETA has found interesting ways to protest against animal cruelty.
My blog post about acrostics (especially about one in a letter of resignation from a presidential advisory committee) has been quite popular among my readers. Here are a few more acrostics.
Acrostics are a data hiding technique that has been in use for centuries. The latest example is contained in a letter of resignation written by a US committee last week.
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