• ...The nation’s brightest young minds to consider careers in STEM and cyber related fields

  • ...Robust dialog with the American public on cyber policy, technology, and privacy

  • ...Those who “served in silence” with valor and distinction, especially those who gave their lives in service


Influence the cryptologic future by sharing our educational resources, stimulating new knowledge, & commemorating our heritage.

1939: Meeting of Pyry took place.....

Monday, July 25, 2022

On 25 & 26 July 1939, one of the most important events in the history of intelligence took place in the woods outside Warsaw. Just three weeks before the Government Code and Cypher School (GC&CS) moved to its War Station at Bletchley Park, its Head, Alastair Denniston, and its Chief Cryptanalyst, Dilly Knox, traveled to Warsaw to meet their Polish and French equivalents. During this meeting, Poland shared its successes against the ENIGMA with Britain and France. Poland’s main codebreakers were Jerzy Rozycki, Henryk Zygalski, and Marian Rejewski who joined the Polish General Staff's Cipher Bureau in Warsaw. (Image is of Denniston's travel documents - via the Bletchley Park Web site.)

The first breakthroughs in regard to solving the Enigma did not occur at Bletchley Park, but rather had already occurred in Poland. German military messages enciphered on the Enigma were first broken by the Polish Cipher Bureau, beginning in December 1932. Three Polish mathematicians pioneered the solutions - Jerzy Rozycki, Henryk Zygalski and Marian Rejewski. The Poles had understood that it was necessary to use mathematics to look for patterns, and they had then taken a further step by building electro-mechanical machines to search for solutions, known as "bombas."

The GCHQ Departmental Historian said, “To the surprise of the British, the Poles, who had treated Enigma as a mathematical problem from the outset, were much further forward than they were both in terms of successful cryptanalysis and of building machinery to support cryptanalysis. The Poles were generous and shared everything they had with their allies.”

Visit the link below to learn more about the Meeting of Pyry and the 75th anniversary in 2014.

Also read the article, "Poland's Overlooked Enigma Codebreakers," by Gordon Corera for BBC News and "Polish Codebreakers 'cracked Enigma before Alan Turing'" in the Telegraph - links below.

And read, "The Hacker Who Saved Thirty Million Lives," by Wojciech Oleksiak - about Polish mathematician Marian Rejewski via the link below.

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On This Day In History


  • First WAC personnel arrived at Arlington Hall Station.

About Us

The NCF's Vision is to Influence the cryptologic future by sharing our educational resources, stimulating new knowledge, and commemorating our heritage.

The Foundation provides exceptional cryptologic programs throughout the year, encourages young minds to explore cryptology and cyber education and careers,  hosts educational, cryptology-related exhibits at various community events, and honors the people— past, present, and future—whose contributions to our national security protect and make possible our way of life.

The NCF also provides needed support to the National Cryptologic Museum (NCM), the first public museum in the U.S. Intelligence Community. Located adjacent to the National Security Agency (NSA) in Maryland, the NCM houses a unique and priceless collection of artifacts that represent our Nation's history in code making and code breaking, as well as a world class library of cryptologic media. The NCF acquires the best artifacts for the Museum and supports new educational and interactive exhibits.

As part of the Foundation's partnership with NSA to build the Cyber Center for Education and Innovation - Home of the National Cryptologic Museum (CCEI-NCM), the NCF also serves as a leader in the field of cybersecurity - striving to provide the best in educational resources and programs.

The NCF has a three-part mission to Educate, Stimulate, and Commemorate. Learn more about our MISSION.