TheCodeBreakers
estimating how long it would take the ambassador to drive to the
embassy and have a message of that length encoded and sent to the
telegraph office—could more easily pick out the cryptogram
corresponding to that message from the embassy's daily file.
As usual, the Swedish cryptanalysts were greatly helped by lazy or
stupid encoders. Clerks repeatedly violated the most elementary rules by
failing to superencipher and forgetting to bisect messages. The worst
bungler the Swedes came across was the German consul at Stavanger,
whose numerous blunders became the vulnerable heel of many a
German message. His name—almost too fittingly—was F. W. Achilles.
The Swedes appreciated his help so much that they hung a large
photograph of him in their office. "He was very fat and he looked like a
gorilla," Segerdahl said. "I never met the man personally, but I
considered him my best friend in the German diplomatic service!"
annaabi.ee 
