by Dan Brown · Bertrand, Livraria · tapa blanda · ISBN 9789722517751
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«Fortaleza Digital» is the thriller and suspense novel by Dan Brown, published by Bertrand, Livraria in paperback (576 pages, in Portuguese).
When the NSA's supercomputer is locked by an impossible code, cryptographer Susan Fletcher must solve it while her fiancé, David Becker, travels to Spain on the trail of a ring. Both end up trapped in a web of lies that questions the limits of universal security.
Published on May 18, 2012; Portuguese edition in paperback, 576 pages.
For readers of thrillers and suspense with plots involving cryptography, espionage and state secrets.
Daniel Gerhard Brown is an American writer best known for his thriller novels, particularly the Robert Langdon series Angels & Demons (2000), The Da Vinci Code (2003), The Lost Symbol (2009), Inferno (2013), Origin (2017) and The Secret of Secrets (2025). His novels are treasure hunts that usually take place over a 24-hour period and center on recurring themes of cryptography, art, and conspiracy theories.
