Digital Fortress by Dan Brown

“Digital Fortress” by Dan Brown is a fast-paced techno-thriller centered on the world of cryptography and national security. The story follows Susan Fletcher, a talented mathematician and cryptographer who works for the National Security Agency (NSA). When a highly advanced encryption algorithm, known as Digital Fortress, threatens to undermine the NSA’s ability to decode messages and maintain national security, Susan is drawn into a high-stakes battle against a mysterious hacker and a web of deception. As she uncovers the truth behind the algorithm, Susan must navigate a labyrinth of intrigue, betrayal, and danger, all while grappling with ethical questions about privacy and surveillance.