Isdal-bar

In 1970 the corpse of a woman was found near Bergen, Norway. In her car police found encrypted notes. These notes were deciphered, but the identity and the cause of death of this woman have remained a mystery until today. Thanks to blog reader Bjarne, I can now present a few new facts about this…

Koehler-cryptogram-bar

In 1944 a Nazi spy located in New York sent encrypted messages via Paris to Germany. These cryptograms have never been deciphered.

German-Agent-Code-A-bar

A German spy captured in the UK in World War II used a cipher that would hide a message in a love letter. Did this method work well in practice?

Foley-bar

Frank Foley, a British secret agent operating in Nazi Germany, saved many Jewish people from the holocaust. In the British National Archives, I found an unusual encryption method that was (probably) used by one of his men.

Violine-bar

In the 1950s the Germans used a unique crypto device named “Violine”. I have always wondered what it was used for. In a book about espionage I found the likely answer.

Rubik-bar

A Rubik’s Cube can be used to implement a highly secure encryption method.

Isdal-bar

In 1970 the corpse of a woman was found near Bergen, Norway. The real identity of this woman and the cause of her death are still not clear to date. In her car police found encrypted notes. According to Norwegian media, new evidence has now been discovered.

Technico-bar

The encryption codes of German spies in World War 2 are still little researched. Today I will introduce an interesting spy telegram that was sent from Buenos Aires to Hamburg in 1940.