Digital Fortress

Digital Fortress by Dan Brown is a techno-thriller set in the mid-1990s that centers on the National Security Agency’s (NSA) code-breaking supercomputer TRANSLTR encountering an unbreakable code named Digital Fortress. The NSA’s head cryptographer, Susan Fletcher, is called in to crack the code created by a former NSA employee, Ensei Tankado, who threatens to release it publicly, which would cripple U.S. intelligence. As Fletcher races against time to stop the release of this dangerous code, her fiancé David Becker embarks on a perilous mission to retrieve a key that may unlock the code. The novel explores themes of government surveillance, privacy versus security, the power of encryption, and betrayal within intelligence agencies, wrapped in a fast-paced plot full of secrecy, lies, and action.