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Cryptologic History

Every little bit helps the NCF to influence the cryptologic future by sharing our educational resources, stimulating new knowledge, and commemorating our heritage.

"On This Date in Cryptologic History" Calendar

1970: Attempt to rescue POWs from North Vietnam.

Thursday, November 20, 2025

20 Nov 1970: Attempt to rescue POWs from Son Tay, North Vietnam. Tactical SIGINT was superb, but the POWs were moved before the raid.

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Learn About the Pioneers

Learn about the various individuals and groups who paved the way in the field of cryptology, cyber, computers, and more.