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Digital Fortress Audiobook

Digital Fortress

When the NSA's invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls its head cryptographer, Susan Fletcher, a brilliant, beautiful mathematician. 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.
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Publisher's Summary

When the NSA's invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls its head cryptographer, Susan Fletcher, a brilliant, beautiful mathematician. 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. Caught in an accelerating tempest of secrecy and lies, Fletcher battles to save the agency she believes in. Betrayed on all sides, she finds herself fighting not only for her country but for her life, and in the end, for the life of the man she loves.

Click here to see all the titles in our Da Vinci Code collection.

©1998 Dan Brown; (P)2004 Books on Tape, Inc.

What the Critics Say

"In this fast-paced, plausible tale, Brown blurs the line between good and evil enough to delight patriots and paranoids alike." (Publishers Weekly)
"Digital Fortress is the best and most realistic techno-thriller to reach the market in years...A chilling thrill a minute." (The Midwest Book Review)
"Exciting...will rivet cyber-minded readers." (Booklist)

What Members Say

Average Customer Rating

4.1 (315 )
5 star
 (141)
4 star
 (96)
3 star
 (42)
2 star
 (26)
1 star
 (10)
Overall
4.2 (162 )
5 star
 (87)
4 star
 (34)
3 star
 (26)
2 star
 (11)
1 star
 (4)
Story
4.4 (162 )
5 star
 (95)
4 star
 (41)
3 star
 (22)
2 star
 (3)
1 star
 (1)
Performance
Sort by:
  •  
    Roy Liverpool, MSY, United Kingdom 26/07/2006
    Roy Liverpool, MSY, United Kingdom 26/07/2006
    HELPFUL VOTES
    36
    ratings
    REVIEWS
    22
    5
    FOLLOWERS
    FOLLOWING
    0
    0
    Overall
    "Bad Science Bad Writing Bad Book"

    But well read the two stars ar eentirely for the naration if the reader had been less skilled I'd have given up. If I'd been trying to read it I'd probably have burned the book and given thought to burning Dan brown as well.

    So what's so bad.

    It starts okay, the characters are cliches genius linguist in the Indiana Jones mold (yes I know he was an archeologist) meets genius cryptographer that looks like she stepped off a catwalk (Jessica Alba would probably play her in the movie she's very smart but never uses those brains for anything.)

    Any way they hook up and fall in love then get involved with a secret government project to secretly decript everyones e-mails. (this isn't really a spoiler you get this much on the back cover)

    Okay so the action moves on for reasons tha tonly become apparently late on and don't really work the hero is sent to France to get hold of a mcguffin. Meanwhile the gf is set to do clever things with computers in an I.T. section where RSI is the least of her worries.

    Okay so the plots bad and cliche, the characters aren't even cardboard they're paper thin and the environment are'ne hugely exciting even a cool IT suite is still a set of desks with a pc on the top.

    Coincidence piles on coincidence on a large wobbly stack that is neither structurally sound or that interesting to watch being built.
    Supposedly clever people act stupidly and miss things even the reader (who''s meant to be a lot less bright than these guys) has figured out and then the hero well meaing untrained amatuer that he is points out of all the things in this book this constant making everyone dumb so the hero seems start is the most irritating.

    For the author and the book no stars for the reader 2 stars for heroic efforts at turd polishing.

    15 of 18 people found this review helpful
  •  
    Jeremy 29/11/2011
    Jeremy 29/11/2011
    HELPFUL VOTES
    2
    ratings
    REVIEWS
    20
    3
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    FOLLOWING
    0
    0
    Overall
    "A good read for geek thrill seekers."

    I enjoyed the concept of book, although a plot line was a touch predictable. I would have like to have seen a little character building.
    None the less I found I really enjoyed it.

    1 of 1 people found this review helpful
  •  
    William 24/10/2005
    William 24/10/2005 Member Since 2012
    HELPFUL VOTES
    21
    ratings
    REVIEWS
    7
    3
    FOLLOWERS
    FOLLOWING
    0
    0
    Overall
    "Unbelievably Bad!"

    This book is laughably bad!

    From the corny hero decription 'seven foot tall with a rugged jaw and stealy blue eyes' etc, you know the kind of cliche drival at the start of the book, to the assassin who goes around killing characters for absolutely no reason midway, finally to the ridiculous end - five letter password - the baddy who's in love with Susan the heroin - can you guess the password?

    Terrible.

    14 of 26 people found this review helpful
  •  
    Nick 24/11/2015
    Nick 24/11/2015
    ratings
    REVIEWS
    3
    3
    Overall
    Performance
    Story
    "Not his best - enjoyable but some irritatations"
    Would you say that listening to this book was time well-spent? Why or why not?

    Yes, I wanted to come back to find out who was behind what, the characters were mostly likeable.


    How would you have changed the story to make it more enjoyable?

    There were way too many technical faux-pas for me - unbreakable cyphers, uncrackable text-messages, much of the tech was just a bit too twee. And [SPOILER ALERT] a secure facility where the door won't open if it's generator goes off ? really, please...


    Have you listened to any of Paul Michael’s other performances? How does this one compare?

    the reading was good overall.


    Do you think Digital Fortress needs a follow-up book? Why or why not?

    Please no, some of DB's other novels have been more enjoyable.


    0 of 0 people found this review helpful
  •  
    Mr. P. J. Sewter UK 10/11/2015
    Mr. P. J. Sewter UK 10/11/2015 Member Since 2016
    ratings
    REVIEWS
    3
    2
    Overall
    Performance
    Story
    "Good but Dan Browns worst!"

    ....well it's not trendy to admit liking Dan Brown (or anyone who's had massive success), but I love his books. That admitted, this is probably my least favourite of his excellent thrillers. Well worth getting, but check out all the others first!

    0 of 0 people found this review helpful
  •  
    PurpleBird 11/09/2015
    PurpleBird 11/09/2015
    ratings
    REVIEWS
    17
    2
    Overall
    Performance
    Story
    "avoid if you know anything about cryptography"

    if if weren't for Dan Brown's attempts at technical details it would be quite a good story. in fact the amusingly incorrect babble about cryptography and security aren't really needed to tell the story but if you know even a little about either the errors are huge and jarring.

    0 of 0 people found this review helpful
  •  
    Soffie 30/07/2015
    Soffie 30/07/2015 Member Since 2015
    ratings
    REVIEWS
    4
    4
    Overall
    Performance
    Story
    "Not his best"

    I like the pace of Dan Browns books but I did feel that this story line was not as good as his others.
    It still kept me entertained but was a bit predictable.

    0 of 0 people found this review helpful
  •  
    Christopher Murphy 20/07/2015 Member Since 2014
    ratings
    REVIEWS
    10
    1
    Overall
    Performance
    Story
    "Amaizing "

    Very easy to listen to and finished with no problwm . The book was brilliantly written and performed greatly. Dan Brown is a fantastic author and would highly recommend his work to everyone.

    0 of 0 people found this review helpful
  •  
    Rachel 08/04/2015
    Rachel 08/04/2015
    ratings
    REVIEWS
    1
    1
    Overall
    Performance
    Story
    "Enjoyed the story, wasn't the best but easy"

    easy to listen to. mix between predictable and shocking but overall i enjoyed it :)

    0 of 0 people found this review helpful
  •  
    Amazon Customer 25/02/2015
    HELPFUL VOTES
    1
    ratings
    REVIEWS
    5
    5
    FOLLOWERS
    FOLLOWING
    0
    0
    Overall
    Performance
    Story
    "Worst Dan Brown"

    Dan took what could have been a promising storyline and turned it into an implausible ridiculous yarn. Utter rubbish.
    Did listen to entire story and it became more ridiculous all the way through.

    0 of 0 people found this review helpful
Sort by:
  • Amy
    Ontario, Canada
    19/06/04
    Overall
    "Meh..."

    I enjoy reading Dan Brown; I find his books are based on interesting ideas and concepts, and Digital Fortress is no exception.

    I noted in my review of "Angels and Demons" that Brown's story-telling improves between that book and "The Da Vinci Code". "Digital Fortress", written before "Angels and Demons" further proves that sentiment. Heather from Fullerton's comment that it's "not quite as sophisticated" is spot on.

    The book starts off well enough, and it was ticking along fine until towards the end, when the characters - and therefore the story line - seemed inexplicably struck dumb.

    I read this book basically because it's written by Dan Brown, and I was curious to see what else he has written; as I said off the top, I find the ideas and concepts he writes about quite interesting.

    But if you're debating whether or not to get this book, I would say spend your money on something else - even another (later) Dan Brown book!

    46 of 48 people found this review helpful
  • E. A Dunn
    The beautiful South
    09/01/05
    Overall
    "Don't read what you know"

    Let me start by saying that I really enjoyed Da Vinci code and its prequel, so I was optimistic about this read. Unfortunately, I was horribly disappointed. I am not sure if the culprit is Mr. Brown's lack of knowledge about this subject (compared to the subject matter of Da Vinci) or my relative depth of knowledge about it (I happen to run data centers for a living) but I was extremely disappointed in the book.

    The characters were interesting and the basic concept to start with was OK, but from there it degenerated rapidly. By the end of the book I was figuring things out quicker than most of the characters (always a bad sign) and the majority of the plot line had become completely unbelievable. As with all techo-thrillers, the bottom line is that when the machine is run-amok or in horrible danger... simply turn the thing off. Since this solution is so elegantly simple, writers from Asimov to Star Trek have been inventing convulted ways to keep their machines from being turned off, and even more convulted reasons why those mechanisms would be built. Just in case Mr. Brown decides to write in this genre again, here are some good rules of thumb:
    1) Rule #1 of data center design - The EPO (emergency power off) is always located at a controlled and secure location near the exits (there can be multiple, after all) to the data center... not 3 stories below the data center in some goofy catacombe of generators and cooling equipment.
    2) Rule #1 of computer system design - If your $3 billion computer runs so hot it can explode... put a $10 temperature sensor in it so it can shut itself down to keep that from happening accidentally.
    3) Rule #1 of being an international assassin - silencers don't work very well on revolvers, sound escapes from between the cylinder and the barrel.

    24 of 25 people found this review helpful
  • Daniele
    PerugiaItaly
    10/11/05
    Overall
    "Don't try it"

    One of the worst books I've ever read. The technological background is not weak, it's ridiculous. Anyone that has a minimum understanding of software engineering will find difficult to finish the book. Cryptography-related descriptions and explanations are childish. The plot is paper-thin, character motivation is unbelievable...

    15 of 16 people found this review helpful
  • Scott
    Seattle, WA, USA
    20/09/06
    Overall
    "Don't buy"

    I wish I had read the other reviews before buying this book. I'm a fan of Dan Brown's other books but this one is pretty bad for all the reasons mentioned in the other reviews. If you know anything at all about computers or math, turn your brain off as you read.

    Btw if you do manage to get through the book, do yourself a favor and skip the last half hour or so. Reading the painstaking walkthrough of a google search and all the breathless "deductions" the characters go through nearly drove me to a life of crime.

    9 of 10 people found this review helpful
  • Shannon
    Newton, MA, United States
    08/09/08
    Overall
    "Suspend reality"

    If you know ANYTHING about computer science then you'll need to be able to COMPLETELY suspend reality in order to enjoy this. I was not able to.

    7 of 8 people found this review helpful
  • Paul
    Ellicott City, MD, USA
    20/06/04
    Overall
    "Do Not Read This Book...It is Terrible"

    Let me begin by stating that I have never before written a review for any book, and I have listened to many. However, "Digital Fortress" was one of the worst books that I have listened to in a very long time, so I wanted to warn other readers to not waste their money or book credits. I could not believe that this was the same writer who created the Davinci Code, which was intelligent and clever. In stark contrast, Digital Fortress had a completely predictable plot and the writing was very poor. Much of the book is the characters saying the same thing over and over again, to the point of the annoyance of the reader. As predictable as the overall plot was, the ending was even more so. Avoid this book if at all possible!!

    57 of 72 people found this review helpful
  • angel
    05/06/04
    Overall
    "Satisfying Entertainment"

    National security, international intrigue, ideal love, unrequited love, computer genius, insane genius, and code puzzles are all glittering threads in this luminous tapestry woven skillfully by Dan Brown and brought to life by the impressive vocal characterizations of Paul Michael. Written several years prior to The Da Vinci Code and not quite as sophisticated, Digital Fortress is nonetheless an elegant creation and a satisfying entertainment.

    20 of 25 people found this review helpful
  • Irene
    Sanford, NC, USA
    22/05/05
    Overall
    "Not that Bad"

    Although some have gave this book a poor rating - the book is not that bad. When you have read enough books the plot in this was easily solved and not much guess work; however the story was good and still enjoyable. It kept my interest and that's important.

    2 of 2 people found this review helpful
  • Titillated
    Arizona, USA
    24/11/05
    Overall
    "Predictable"

    Da Vinci Code was always tantalizing - it kept you starting the new chapter. This book is so predictable that it is tiresome. I listened to the unabridged version in honor of Da Vinci Code. What a waste of my time. Save yourself the aggravation. The final code was so obvious I predicted it as soon as I read the description of the riddle. Then the most brilliant cryptographers in the world spent pages trying to solve it. Boring. Brown is trying to be too cute and has no new tricks in this book.

    4 of 5 people found this review helpful
  • Kathleen
    North Scituate, RI, USA
    09/04/05
    Overall
    "Skip It"

    I really enjoyed the DaVinci Code and Angels and Demons -- but, the talent seen in those books was not visible in this effort. The characters were cookie-cutter stereotypes, the plot was a misery and the technical details inaccurate. Save your book credits for Mr. Brown's later works.

    4 of 5 people found this review helpful

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