From #1 New York Times Bestselling Author Dan Brown

The electrifying techno-thriller that intelligence analysts call "utterly plausible"

When the NSA's invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls its head cryptographer, Susan Fletcher. What she uncovers sends shock waves through the corridors of power...

Digital Fortress Book Cover
New York Times Bestseller

A Race Against Time to Save U.S. Intelligence

Chillingly current and filled with more intelligence secrets than Tom Clancy, Digital Fortress transports the reader deep within the most powerful intelligence organization on earth–the National Security Agency (NSA).

The NSA is being held hostage… not by guns or bombs, but by a code so ingeniously complex that if released it will cripple U.S. intelligence.

Caught in an accelerating tempest of secrecy and lies, Susan 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.

From the underground hallways of power, to the skyscrapers of Tokyo, to the towering cathedrals of Spain, a desperate race unfolds. It is a battle for survival — a crucial bid to destroy a creation of inconceivable genius… an impregnable code-writing formula that threatens to obliterate the balance of power. Forever.

Why Readers Love Digital Fortress

  • Fast-paced, edge-of-your-seat suspense
  • Fascinating insights into cryptography and cybersecurity
  • Compelling characters and international intrigue
  • Written by the master of the intelligent thriller
  • Themes more relevant today than ever before

About the Author

Dan Brown

Dan Brown

Dan Brown is the #1 New York Times bestselling author of The Da Vinci Code and numerous other bestselling novels, including Digital Fortress, Angels & Demons, Deception Point, The Lost Symbol, Inferno, and Origin.

Brown's novels are published in 56 languages around the world with over 200 million copies in print. His books have been adapted for the screen, including The Da Vinci Code starring Tom Hanks.

Known for his meticulous research and technical accuracy, Brown's Digital Fortress remains a chillingly relevant thriller in today's world of increasing digital surveillance and cybersecurity threats.

What Critics Are Saying

"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

"A disturbing, cutting-edge techno thriller that should galvanize everyone who sends or receives email or even dreams of navigating the Web."

Macmillan Publishers

"In this fast-paced, plausible tale, Brown blurs the line between good and evil enough to delight patriots and paranoids alike."

Amazon.com

Read an Excerpt

The morning sun filtered through the stained glass windows of St. Michael's Cathedral and spread across the altar in a prismatic patch of light. Outside the carved mahogany doors, the city was just now coming to life—merchants opening their shops, taxi drivers honking their horns, and street vendors setting up their carts. But inside the stone walls of the sanctuary, there was only silence. A silence so complete that Father Gustaphes Herrera could hear the soft beat of his own heart.

The old priest knelt before the altar and prayed. He asked for the usual things—strength, forgiveness, guidance. But today, he also prayed for understanding. He had been awakened early by a strange phone call. The caller had not identified himself, but had conveyed a message that had left Father Herrera deeply troubled...

Continue reading this gripping thriller...

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Standard Edition

$9.97
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Collector's Edition

$29.97
  • Everything in Premium Edition
  • Digital audiobook version
  • Exclusive interview with Dan Brown
  • Digital art collection
  • Cryptography puzzles and challenges
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Exclusive Bonus Content

Research Notes Icon

Author's Research Notes

Dive into Dan Brown's extensive research on the NSA, cryptography, and security agencies. See how fact and fiction blend in this thrilling novel.

Guide Icon

Cryptography Guide

Learn about the real-world encryption methods that inspired Digital Fortress. Understand the basics of codes and ciphers used by intelligence agencies.

Interview Icon

Exclusive Author Interview

Hear directly from Dan Brown about the inspiration behind Digital Fortress and how its themes remain relevant in today's digital world.

Puzzle Icon

Interactive Puzzles

Test your code-breaking skills with interactive puzzles inspired by the novel. Can you solve what the NSA's supercomputers couldn't?

100% Satisfaction Guarantee

100% Satisfaction Guarantee

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Frequently Asked Questions

What formats are available for the eBook?

Digital Fortress is available in PDF, EPUB, and MOBI formats, making it compatible with virtually all e-readers, tablets, smartphones, and computers.

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After completing your purchase, you'll receive an email with download links for all available formats. You can also access your purchase from your account dashboard at any time.

Is this the complete novel?

Yes, this is the complete, unabridged version of Digital Fortress by Dan Brown, identical to the print edition but in digital format.

What's included in the Premium and Collector's Editions?

The Premium Edition includes the complete eBook plus exclusive author commentary, behind-the-scenes research notes, and an NSA and cryptography guide. The Collector's Edition includes everything in the Premium Edition plus a digital audiobook version, an exclusive interview with Dan Brown, a digital art collection, and cryptography puzzles and challenges.

How does the 30-day guarantee work?

If you're not satisfied with your purchase for any reason, simply contact our customer support team within 30 days of your purchase, and we'll process a full refund. No questions asked.

Get Your Copy of Digital Fortress Today

Don't miss this opportunity to experience the thrilling techno-thriller that launched Dan Brown's career before The Da Vinci Code made him a household name.

With themes of privacy, surveillance, and cybersecurity, Digital Fortress is more relevant today than when it was first published.

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