Digital Fortress by Dan Brown is a high-stakes techno-thriller that dives deep into the world of government surveillance, cryptography, and moral ambiguity. Originally published in 1998, it remains a cornerstone of the modern thriller genre, especially for fans who enjoy the intersection of high technology and intense suspense.

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   1. Susan Neveu: The protagonist, a brilliant and beautiful cryptologist working for the NSA.
   2. Robert Langdon: A Harvard professor and expert in symbology, who becomes involved in the mystery.
   3. Lucius Beaumont: A wealthy and powerful individual with a hidden agenda.

   Privacy vs. Security:

   The central conflict explores whether the government has the right to monitor private communications for national safety.

   Government Oversight: The book questions the extent to which government agencies should be allowed to monitor private communications in the name of safety.