ABSTRACT

‘Search for Security’ examines why the German Marine (Navy) never recognized the compromise of its Enigma ciphers. The detailed study of several surviving Marine security investigations reveals that the investigators employed flawed methods and refused to consider seriously rather obvious signs that the Allies could read Enigma messages. Instead, the Germans blamed their information leaks on Allied agents and, most of all, on the Allies’ presumed technical superiority in the areas of radar and location technology, not superior cryptanalytic technology.