Enigma

Allies sold captured Enigma machines to Developing countries

After the end of WW II, the Allies sold captured Enigma machines, still widely considered secure, to developing countries. These countries did not know that the machine had been broken, their supposedly secure communications were being read regularly by the major Western intelligence agencies

Other countries used e.┬ámachines. The Italian Navy adopted the commercial Enigma as “Navy Cipher D”. The Spanish also used commercial Enigma during their Civil War. British codebreakers succeeded in breaking these machines, which lacked a plugboard. Not only militaries used the Enigma, they were also used by diplomatic services.

The Swiss used a version of Enigma called model K or Swiss K for military and diplomatic use, which was very similar to commercial Enigma D. The machine was cracked by Poland, France, the United Kingdom and the United States (the latter codenamed it INDIGO). An Enigma T model (codenamed Tirpitz) was used by Japan.

An estimated 100,000 E. machines were constructed. After the end of World War II, the Allies sold captured Enigma machines, still widely considered secure, to developing countries. As these countries did not know that the machine had been broken, their supposedly secure communications were being read regularly by the major Western intelligence agencies.

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