A rare example of Nazi Germany's Enigma encryption technology, the fully functional Enigma M4 machine, sold at auction in Paris for €482,600, greatly surpassing expectations.The anonymous buyer acquired the machine that was previously owned by a French collector and was used by the Germans for encrypted communications during World War II.The British mathematician Alan Turing and his team famously cracked the Enigma code, contributing significantly to the defeat of Hitler's Germany.