Declassified NSA document reveals the secret history of TEMPEST
It was 1943, and an engineer with Bell Telephone was working on one of the U.S. government's most sensitive and important pieces of wartime machinery, a Bell Telephone model 131-B2. It was a top secret encrypted teletype terminal used by the Army and Navy to transmit wartime communications that could defy German and Japanese cryptanalysis.
Then he noticed something odd.
[ Read more ]
Reading our newsletter every Monday will keep you up-to-date with security news.
Receive a daily digest of the latest security news.