During the Second World War, British intelligence achieved a feat that sounds like fiction. They captured almost every single German spy sent to Britain. Instead of executing them, they offered a choice: work for us or face the firing squad. This created the Double Cross System, managed by the Twenty Committee. The name was a clever pun on the Roman numeral XX, which looks like two crosses. This group transformed enemy agents into a powerful weapon of deception.
The system relied on a delicate balance of truth and lies. To keep the Germans interested, double agents had to send back real information. This was known as chicken feed. It was usually accurate but arrived too late to be useful. One of the most famous agents was Juan Pujol García, who used the code name Garbo. He created a completely imaginary network of 27 sub agents. The German high command believed his reports so much that they awarded him the Iron Cross. They never realized he was actually sitting in London, writing fictional reports with the help of British officers.
full article: https://thoughtframe.org/article/PivizAH1nN7ccbuduc38
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