When the NSA's code-breaking machine encounters a code it cannot break, the agency calls in its head cryptographer, Susan Fletcher. What she uncovers sends shock waves through the corridors of power. The NSA is being held hostage not by guns or bombs, but by a code so complex that, if released, it would cripple U.S. intelligence.
Showing 1-5 of the 5 most recent reviews
1 . One of Browns best
Posted January 04, 2010 by James , BostonDigital Fortress is easily one of Dan Browns best books, as fast as Angels and Demons, and with plot twists and surprises that you will never see coming. Full of action with the realistic and plausible backdrop that make all of Browns work so chilling. Meet a whole new set of deep and fascinating characters and prepare for a breakneck ride.
2 . Full of technical errors
Posted November 20, 2009 by Gustavo , MiamiBy far the wrost book I have read from Dan Brown.
Most references to computer technology are wrong or incorrectly explained. The idea or main concept of the book is interesting however all technical errors make this story unbelivable, also the characters are also not natural they are acting a plot that is just not natural (A geek professor defeting an Assasin, etc).
3 . Great read!
Posted September 17, 2009 by Sheena , MarylandWithout getting bogged down with nit picky technicalities it was a great great book! Fast paced, plots twists!! It was very very well written. After reading Davinci three years ago or so, I went into Dan Brown mode and read all the novels and this was just as great, Deception Point was fantastic as well.
This author is truly gifted!
4 . Crypto thriller
Posted June 30, 2009 by SBonner , AlbuquerqueI enjoyed this math/crypto thriller. A not far fetched story of the NSA and the attempts at our safety. So different than other Dan Brown stories but certainly a book to read if your a Dan Brown fan as I.
5 . Not for the technically literate
Posted April 30, 2007 by Chris , MinnesotaIf you enjoy technology and work with computers you probably won't like this book. It is nowhere near the caliber of Deception Point and the technology is either dated or just plain wrong.
At almost every turn, it is clear that Dan Brown does not understand technology behind cell phones, computer hardware, security, and cryptology. The entire basis for the book is flawed: An "unbreakable" encryption algorithm using a 64 bit key represented by 64 characters (Dan doesn't understand the difference between bits and characters) that cannot be broken by a brute force attack - such as trying each possible key. Cell phone calls are traced through "booster stations", E-mails that "call home" after passing through servers and that can be remotely controlled as they are being delivered.
A lot of the action takes place in the NSA's most secure facility. Too bad it's so insecure during over the weekend. It's just not believable.
A minor distraction is that many of the companies that DB mentions are now out of business (remember Prodigy and Compuserv). Such is "Internet time". (The book was written in 1997.)
The book reminds me of poorly done TV action shows where one improbable event is followed by a never-ending stream of other improbable events.
If you're looking for a good action/thriller and you have not read Deception Point, try that instead.
If you are unfamiliar with the technology that powers the Internet, you may enjoy Digital Fortress (hence the rating of '2' rather than '1'.)
Thomas Dunne Books
December 31, 1997
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Adobe DRM EPUB
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Excerpt from Digital Fortress by Dan Brown
They were in the smoky mountains at their favorite bed-and-breakfast. David was smiling down at her. "What do you say, gorgeous Marry me " Looking up from their canopy bed, she knew he was the one. Forever. As she stared into his deep-green eyes, somewhere in the distance a deafening bell began to ring. It was pulling him away. She reached for him, but her arms clutched empty air. It was the sound of the phone that fully awoke Susan Fletcher from her dream. She gasped, sat up in bed, and fumbled for the reciever.
"Susan, it's David. Did I wake you "
She smiled, rolling over in bed. "I was just dreaming of you. Come over and play."
He laughed. "It's still dark out."
"Mmm." She moaned sensuously. "Then definitely come over and play. We can sleep in before we head north."
David let out a frustrated sigh. "That's why I'm calling. It's about our trip. I've got to postpone."
Susan was suddenly wide awake. "What!"
"I'm sorry. I've got to leave town. I'll be back by tomorrow, We can head up first thing in the morning. We'll still have two days."
"But I made reservations," Susan said, hurt. "I got our old room at Stone Manor."
"I know, but --"
"Tonight was supposed to be special -- to celebrate six months. You do remember we're engaged, don't you "
"Susan." He sighed. "I really can't go into it now, they've got a car waiting. I'll call you from the plane and explain everything."
"Plane " she repeated. "What's going on Why would the university... "
"It's not the university. I'll phone and explain later. I've really got to go; they're calling for me. I'll be in touch. I promise."
"David!" she cried. "What's --"
But it was too late. David had hung up.
Susan Fletcher lay awake for hours waiting for him to call back. The phone never rang.