Paved-Steyr

A hidden message has been found on a paved square in Steyr, Austria. Now, the creator of this steganogram has to cover the costs for removing it.

Friedman-Grave-bar

The gravestone of William and Elizebeth Friedman in Washington, DC, bears a hidden message. A few days ago I had the chance to go on site and take a look at it. Here’s my report, including a video that shows Elonka Dunin explaining the code.

Cardsharp-Caravaggio-bar

Cardsharping with steganography is a popular motive on classical paintings. Here are five examples.

Yardley-Stegano-Letter-bar

In July 1918 a British officer, who was imprisoned in Turkey, sent a letter to a girl in London. This letter contains a hidden message. Can somebody help me to find out what kind of code was used?

Lohner-Muscial-Challenge-bar

Blog reader Martin Lohner has created a piece of music that hides a message. Can you find it?

Klaus-Versteckte-Botschaften-bar

Fascinating stories about hidden messages in texts, pictures and other objects – this is what my new book “Versteckte Botschaften” is about. Here are some of the highlights of this work.

Trump-Acrostic-bar

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.

Twin-Peaks-Code-bar

In a scene of the TV series Twin Peaks a flickering air plane window seems to hide some code. Can a reader solve it?

Soccer-Coin-bar

A German memorial coin minted in 2011 bears a hidden code. Maybe my readers can help me to find out more about it.

Censorship-solved-bar

In a British censorship manual from WW2 two pictures containing hidden messages are displayed. My readers have now found at least a part of the solutions.