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Posted by Julie Day on August 28, 2015
Message from World War II decrypted

Dídac Sánchez, a young 22-year-old Spaniard, has managed to do what many others have found impossible for the last 30 years. He has cracked the code and decrypted the last message still to be deciphered from the Second World War. What’s more, he has challenged others to work out the structure of that code and will reward anyone that does with 25,000 euro.

After three years of investigation and an investment of 1.5 million euro, Sánchez has created a new security software called 4YEO (ForYourEyesOnly), based on the same encryption system of the message.

Dídac claims that his new software, which is obviously more technologically advanced and sophisticated that the method used during the war, is one of the safest and secure in the whole world.

This software, which is apparently unbreakable, will be launched onto the market next year and will allow any text, document, email, Whatsapp message, telephone call or SMS to be encrypted, and only enabling the sender and the reader to discover its meaning.

Sánchez has published a message on his webpage ( using the same code and structure used by the British and French intelligence during the war and has challenged others to decipher it, agreeing to hand over the sum of 25,000 euro to anyone that is able to.

The competition begins on 1 September and concludes on 31 December 2015.

In 1982, a resident from Surrey, David Martin, was carrying out renovations on his home when he discovered the skeleton of a carrier pigeon that still had a message capsule attached to its leg in his chimney.

The tube contained the text that intelligence services from across the globe have been unable to decipher to this day.

It is believed that the message was sent just a few days before the Allied forces invaded Normandy in June 1944 (D-Day), and that the pigeon found in David’s Martin’s chimney carried this message but never made its destination, probably Bletchley Park, due to dying from exhaustion.



  • Didac Sanchez
  • World War II
  • decipher message
  • 4YEO
  • computer software


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