Although Dan Brown is widely known for writing Angels and Demons and The Da Vinci Code he also wrote two other very good books one of which is Digital Fortress. This book is based widely on espionage, action, and romance.
The NSA’s super code breaking computer TRANSLTR is at serious risk for becoming obsolete. A former NSA programmer has written an unbreakable code that will render the six billion dollar computer useless. The only way to stop it is to find the kill code.
The what was supposed to be a peaceful weekend for the soon to be married couple turned into a fight for their lives half-way across the world from each other. Both are fighting against a National Security breach in two very opposite ways.
This book displays some sexual and gruesome content so I would only recommend that mature audiences read this book. Once you start reading, though, it is very hard to stop.