The FBI’s Domestic Investigations and Operations Guide (DIOG) was revised and updated based on comments and feedback received since the…
Before World War II, intelligence activities in the United States were mostly carried out by the Department of State, the…
The following document comes from my friends over at GovernmentAttic.org. This is an extensive historical publication, with records going back…
Below, you will find various reports regarding foreign intelligence on Russia. This will primarily consist of records after the Cold…
Background The following 18 CD-ROMs were created by the DoD, when they transferred their FOIA Reading Room to their online…
The goal of cryptanalysis is to find some weakness or insecurity in a cryptographic scheme, thus permitting its subversion or…
The following are documents from the Cryptologic Quarterly, declassified by the NSA. Disclaimer John H. Tiltman: A Reminiscence - Summer/Fall…
The Venona project was a long-running and highly secret collaboration between intelligence agencies of the United States and United Kingdom…
The following documents have been released by the National Security Agency. 1996 Rosman Tracks on to the End August 1996…
The National Security Agency has declassified an eye-opening pre-history of computers used for code-breaking between the 1930s and 1960s. Special…