Schneier - SIGINT During World War II

The NSA and GCHQ have jointly published a history of World War II SIGINT: “Secret Messengers: Disseminating SIGINT in the Second World War.” This is the story of the British SLUs (Special Liaison Units) and the American SSOs (Special Security Officers).



from Schneier on Security https://www.schneier.com/blog/archives/2025/08/sigint-during-world-war-ii.html

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