Cover of Digital Fortress

Thriller

Digital Fortress

3.5 out of 5, from 1,159 ratings from Hardcover readers

The National Security Agency's giant code-breaking machine meets an unbreakable code. A cryptographer and her fiance, a linguist sent to Spain, race against time to find a key before the secrets of the agency are exposed.

Facts last checked 2026-10-16

First published
1998
Pace
Fast
Length
Medium
Pages
384
Format
Standalone

Read this if you want a short, quick, techno thriller from before the author's biggest success.

Skip this if you want technical realism; the computing details are very dated and often unlikely.

The feel

Content warnings

  • Violence
  • Death

Quick answers about Digital Fortress

What is Digital Fortress about?
The National Security Agency's giant code-breaking machine meets an unbreakable code. A cryptographer and her fiance, a linguist sent to Spain, race against time to find a key before the secrets of the agency are exposed.
Who should read Digital Fortress?
Read it if you want a short, quick, techno thriller from before the author's biggest success. Skip it if you want technical realism; the computing details are very dated and often unlikely.
How long and how fast is Digital Fortress?
It is a fast-paced, medium read of about 384 pages, first published in 1998.
Does Digital Fortress have content warnings?
Content we flag: Violence, Death.
Can I borrow Digital Fortress for free?
Often, yes. Check Libby (OverDrive) to see whether your library lends Digital Fortress; the borrow button above searches it for you.
What should I read after Digital Fortress?
Readers who liked it often move on to Snow Crash, The Firm, The Hunt for Red October.

Where to get it

StorePriceLink
Borrow free
Libby / OverDriveFree with a library card Borrow free with Libby from Libby / OverDrive
Print, new
AmazonCheck price Buy new from Amazon
Ebook
KoboCheck price Buy ebook from Kobo
Google Play BooksCheck price Buy ebook from Google Play Books
Audiobook
AudibleCheck price Buy audiobook from Audible

Prices appear here as retailer feeds are connected. Where none is shown, check the store. Links open the store in a new tab.

Some store links, including Kobo, are affiliate links: we may earn a commission if you buy, at no extra cost to you. Library links are never affiliate links. How this works

Because you might love it

If you loved Digital Fortress

All picks

Thriller

More to read

All thriller