Today's organizations need a new security model that more effectively adapts to the complexity and risks of modern environments, embraces hybrid workplaces, and protects people, devices, apps, and data wherever they're located. Zero Trust is the first model with the potential to do all that. Zero Trust Architecture: Theory, Implementation, Maintenance, and Growth is the first comprehensive guide for architects, engineers, and other technical professionals who want to move from Zero Trust theory to implementation and successful ongoing operation. A team of Cisco's leading experts and implementers offer the most comprehensive and substantive guide to Zero Trust, bringing clarity, vision, practical definitions, and real-world expertise to a space that's been overwhelmed with hype. The authors explain why Zero Trust identity-based models can enable greater flexibility, simpler operations, intuitive context in the implementation and management of least privilege security. Then, building on Cisco's own model, they systematically illuminate methodologies, supporting technologies, and integrations required on the journey to any Zero Trust identity-based model. Through real world experiences and case study examples, you'll learn what questions to ask, how to start planning, what exists today, what solution components still must emerge and evolve, and how to drive value in the short-term as you execute on your journey towards Zero Trust.

This book recounts the World War II journeys of a soldier, a ship, and a bottle of spirits through, and around, five great turning-point battles. Those battles were influenced more by geography and climate than by generals and admirals. Properly titled they would be known as the Battles of the Sky (Britain), the Sand (El Alemein), the Snow (Stalingrad), the Sea (North Atlantic), and the Shore (Normandy). Slogging their way through this quintet are an eighteen-year-old G.I. from Missouri (as seen through his letters home), an "ugly duckling" of a Liberty ship (as seen through its Armed Guard reports), and a bottle of rum (as traced by those who, after the war, made money in selling war souvenirs). It is the history of the North Atlantic sea basin and its extensions at war: the story of the lulls between battles, when America's teenage warriors often watched war movies (Humphrey Bogart made and Warner Brothers released seven during the war), sang or listened to popular tunes by songsmiths like Irving Berlin, and drank rum-and-Coke (while listening to Dick Haymes sing the hit "Rum & Coca-Cola"). While accessible and vastly entertaining, this is a serious work of history. By treating World War II in Europe much as Fernand Braudel treated the origins of Western civilization in his masterpiece The Mediterranean and the Mediterranean World in the Age of Philip II, Hatcher brings Braudelian detachment to his narrative.