An official website of the United States government         Here's how you know         
**Official websites use .gov**
A **.gov** website belongs to an official government organization in the United States.
**Secure .gov websites use HTTPS**
 A **lock (lock )** or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to main content (Press Enter).

National Security Agency/Central Security Service

Search
Search

Search

-  About    -  Leadership             
  -  Mission & Combat Support             
  -  Cybersecurity             
  -  Signals Intelligence             
  -  Central Security Service             
  -  Locations             
  -  Research             
  -  Diversity, Equity, Inclusion & Accessibility             
  -  Cybersecurity Collaboration Center      -  Collaborative Partnerships             
    -  Enduring Security Framework             
    -  DIB Cybersecurity Services             
    -  Standards and Certifications             
    -  Artificial Intelligence Security Center 
-  Press Room    -  Press Releases & Statements             
  -  News & Highlights             
  -  Declassification & Transparency Initiatives             
  -  Cybersecurity Advisories & Guidance             
  -  Telework and Mobile Security Guidance             
  -  DoD Microelectronics Guidance             
  -  Research Publications 
-  Careers    -  Unique Pathways             
  -  Innovation 
-  History    -  National Cryptologic Museum             
  -  Cryptologic History             
  -  National Cryptologic Memorial 

# Venona

HomeHelpful LinksNSA FOIADeclassification & Transparency InitiativesHistorical ReleasesVenona

The U.S. Army's Signal Intelligence Service, the precursor to the National Security Agency, began a secret program in February 1943 later codenamed VENONA

The mission of this small program was to examine and exploit Soviet diplomatic communications but after the program began, the message traffic included espionage efforts as well.

Although it took almost two years before American cryptologists were able to break the KGB encryption, the information gained through these transactions provided U.S. leadership insight into Soviet intentions and treasonous activities of government employees until the program was canceled in 1980.

The VENONA files are most famous for exposing Julius (code named LIBERAL) and Ethel Rosenberg and help give indisputable evidence of their involvement with the Soviet spy ring.

The first of six public releases of translated VENONA messages was made in July 1995 and included 49 messages about the Soviets' efforts to gain information on the U.S. atomic bomb research and the Manhattan Project. Over the course of five more releases, all of the approximately 3,000 VENONA translations were made public.

Search

Page 4 of 100

                            - 1
                            - 2
                            - 3
                            - 4
                            - 5
                            - 6
                            - 7
                            - 8
                            - 9
                            - 10
                            -  ...
                            - 100

##### NSA.GOV

                              - About
                              - Leadership
                              - Cybersecurity Collaboration Center 
                              - National Cryptologic Museum 
                              - Contact NSA 
                              - Accessibility
                              - ABA Notice
                              - Site Policies

##### CULTURE

                              - Core Values
                              - Operating Authorities
                              -  Civil Liberties, Privacy, & Transparency Office 
                              - Compliance
                              - Diversity, Equity, Inclusion, & Accessibility
                              - General Counsel
                              - NSA Inspector General

##### HELPFUL LINKS

                              -  
                              - NSA Freedom of Information Act
                              - Privacy Act Requests
                              - Request a Speaker
                              - Prepublication Review
                              - Media Inquiry
                              - Frequently Asked Questions

##### RESOURCES

                              - Classified Materiel Conversion
                              - Commercial Solutions for Classified Program (CSfC) ​
                              - Cryptographic Support Services 
                              - Media Destruction Guidance 
                              - NSA Open Source

##### RELATED LINKS

                              - DNI.gov
                              - Defense.gov
                              - IC on the Record
                              - Intelligence.gov

                            - Privacy & Security      Links Disclaimer       Section 508       Web Policy       Plain Writing Act      DOD IG      No FEAR Act       Imagery Use      FOIA      Open GOV      Strategic Plan      USA.gov      Small Business Act      Site Map   

                        - NSA.GOV                            - About
                          - Leadership
                          - Cybersecurity Collaboration Center
                          - National Cryptologic Museum
                          - Contact NSA
                          - Accessibility
                          - ABA Notice
                          - Site Policies
                        - CULTURE                            - Core Values
                          - Operating Authorities
                          - Civil Liberties & Privacy
                          - Diversity, Equity, Inclusion, & Accessibility
                          - General Counsel
                          - NSA Inspector General
                        - HELPFUL LINKS                            - NSA Freedom of Information Act
                          - Privacy Act Requests
                          - Frequently Asked Questions
                          - Request a Speaker
                          - Prepublication Review
                          - Media Inquiry
                        - RESOURCES                            - Commercial Solutions for Classified Material (CSFC)
                          - Media Destruction Guidance
                          - Classified Materiel Conversion
                          - Cross Domain Services
                          - NSA Open Source
                          - NSA Exhibit Roadshow
                        - RELATED LINKS                            - DNI.gov
                          - Defense.gov
                          - IC on the Record
                          - Intelligence.gov

Hosted by Defense Media Activity - WEB.mil