Category Archives: Admiral Hall

Hall’s Choice

Admiral Hall of Room 40 – Britain’s analog to the American Black Chamber – was faced with an impossible choice during World War I: immediately release information of the Zimmermann Note to the Americans and risk the Germans developing new, more secure ciphers, or holding on to the note until the perfect moment, potentially risking […] Continue reading

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Admiral Hall’s Decision

The action of Admiral Hall is unethical. When the Room 40 deciphered Zimmerman telegram, Admiral Hall got to know how important this information was and the greatness of deciphering enemy’s ciphertext. He got to know that Germany will begin his plan in two weeks, but he chose not to tell America immediately. However, when the […] Continue reading

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