Maksymilian Ciężki

Maksymilian Ciężki ([maksɨˈmiljan ˈt͡ɕjɛ̃ʂki] ⓘ; Samter, Province of Posen (now Szamotuły, Poland), 24 November 1898 – 9 November 1951 in London, England) was the head of the Polish Cipher Bureau's German section (BS–4) in the 1930s, during which time—from December 1932—the Bureau decrypted German Enigma messages.

During the German invasion of Poland in September 1939, Ciężki escaped to France to continue work on breaking Enigma ciphers. In 1943 he was captured by the Germans and interned in an S.S. concentration camp.

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