In July 1995 the Intelligence Community ended a 50-year silence regarding one of cryptology's most splendid successes - the VENONA Project. VENONA was the codename used for the U.S. Signals Intelligence effort to collect and decrypt the text of Soviet KGB and GRU messages from the 1940's. These messages provided extraordinary insight into Soviet attempts to infiltrate the highest levels of the United States Goverment.
Today, we are proud to offer these exceptional documents on the NSA home page and we invite you to study and interpret them in the context of history. NSA has declassified over 3000 messages related to VENONA. We believe they will not only provide a window into Soviet espionage during the 1940's, but will also give you a glimpse of the important contributions signals intelligence and cryptographic expertise make to our nation's security.

• Introductory History of VENONA and Guide to the Translations
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• VENONA Historical Monograph #2: The 1942-43 New York - Moscow KGB Messages
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• VENONA Historical Monograph #3: The 1944-45 New York and Washington - Moscow KGB Messages
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• VENONA Historical Monograph #4: The KGB in San Francisco and Mexico City and the GRU in New York and Washington Messages
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• VENONA Historical Monograph #5: The KGB and GRU in Europe, South America, and Australia Messages
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• VENONA Historical Monograph #6: New Releases, Special Reports, and Project Shutdown
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