A handbook for the budding cryptographer including codes and ciphers, invisible inks, concealment techniques, spy stories and some history.

"Codes can carry big secrets! Throughout history, lots of good guys and lots of bad guys have used codes to keep their messages under wraps. This fun and flippable nonfiction features stories of hidden treasures, war-time maneuverings, and contemporary hacking as well as explaining the mechanics behind the codes in accessible and kid friendly forms. Sidebars call out activities that invite the reader to try their own hand at cracking and crafting...

Thirteen-year-old Dan Cahill and his older sister, Amy, thought the search for the thirty-nine clues leading to the source of their family's power was over, but when Cahills are kidnapped by the Vespers, Amy and Dan find themselves with only a few day to fulfill a bizarre ransom request before their friends start dying.

1940. As England prepares to fight the Nazis, three very different women answer the call to mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla is the girl who has everything—beauty, wealth, and the dashing Prince Philip of Greece sending her roses—but she burns to prove herself as more than a society girl, and puts her fluent German to use as a translator of...

Describes the function of the more than 400 Navajo marines who invented a secret code that was never broken by the enemy during World War II.

In this book, Dejan Kosutic, author and experienced information security consultant, is giving away his practical know-how on ISO 27001 security controls. No matter if you are new or experienced in the field, this book teaches you everything you need to know about security controls. ISO 27001 Annex A Controls in Plain English is written primarily for beginners to ISO 27001, and for people with moderate knowledge about Annex A of the standard and...

In Agile Information Security, James Fitzer provides sound guidance and examples on working agility into your information security process, using Scrum as a framework, and lessons learned from the Northern Border Integration Demonstration, a high-profile U.S. Border Security project. You will find advice, examples, and team-building concepts designed to make your information security program more effective by trimming the fat from your security process...