Finding the Fist How to Identify a Person's Unique Behavioral Signature

Management  

During World War II, British radio interceptors didn't just listen to the encrypted content of German transmissions. They listened to the gaps between dots and dashes, the subtle pauses, and the specific rhythm of the operator's hand. This unique, involuntary typing style was known as a "fist." It allowed the British to track individual German units across Europe simply by identifying the person behind the telegraph key.

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