NSA Cryptographers Defect: Cold War Security Shattered
Elizebeth Smith Friedman and her husband William Friedman, two of the NSA's most brilliant cryptographers, abandoned their posts in Mexico to defect to the Soviet Union. Their defection stripped American intelligence of critical decryption expertise during the height of the Cold War, leaving the agency scrambling for replacements while Moscow gained unprecedented access to US codes.
June 25, 1960
66 years ago
Key Figures & Places
What Else Happened on June 25
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