This manual describes the Department of Defense (DoD) Cyber Incident Handling Program and specifies its major processes, implementation requirements, and related U.S. government interactions. This program ensures an integrated capability to continually improve the Department of Defense's ability to rapidly identify and respond to cyber incidents that adversely affect DoD information networks and information systems (ISs). It does so in a way that is consistent, repeatable, quality driven, measurable, and understood across DoD organizations.

The global threat landscape is constantly evolving and remaining competitive and modernizing our digital environment for great power competition is imperative for the Department of Defense. We must act now to secure our future.This Digital Modernization Strategy is the cornerstone for advancing our digital environment to afford the Joint Force a competitive advantage in the modern battlespace.Our approach is simple. We will increase technological capabilities across the Department and strengthen overall adoption of enterprise systems to expand the competitive space in the digital arena. We will achieve this through four strategic initiatives: innovation for advantage, optimization, resilient cybersecurity, and cultivation of talent.The Digital Modernization Strategy provides a roadmap to support implementation of the National Defense Strategy lines of effort through the lens of cloud, artificial intelligence, command, control and communications and cybersecurity.This approach will enable increased lethality for the Joint warfighter, empower new partnerships that will drive mission success, and implement new reforms enacted to improve capabilities across the information enterprise.The strategy also highlights two important elements that will create an enduring and outcome driven strategy. First, it articulates an enterprise view of the future where more common foundational technology is delivered across the DoD Components. Secondly, the strategy calls for a Management System that drives outcomes through a metric driven approach, tied to new DoD CIO authorities granted by Congress for both technology budgets and standards.As we modernize our digital environment across the Department, we must recognize now more than ever the importance of collaboration with our industry and academic partners. I expect the senior leaders of our Department, the Services, and the Joint Warfighting community to take the intent and guidance in this strategy and drive implementation to achieve results in support of our mission to Defend the Nation.

In late 2015, the People's Liberation Army (PLA) initiated reforms that have brought dramatic changes to its structure, model of warfighting, and organizational culture, including the creation of a Strategic Support Force (SSF) that centralizes most PLA space, cyber, electronic, and psychological warfare capabilities. The reforms come at an inflection point as the PLA seeks to pivot from land-based territorial defense to extended power projection to protect Chinese interests in the "strategic frontiers" of space, cyberspace, and the far seas. Understanding the new strategic roles of the SSF is essential to understanding how the PLA plans to fight and win informationized wars and how it will conduct information operations.

On Cyber is a groundbreaking work that fuses information security and military science to lay the foundation of an operational art for cyberspace operations. Hundreds of books have been written on the tactics of cybersecurity and dozens have been written that discuss the strategic implications of cyber conflict. But missing is a book that links the two. On Cyber fills that gap. After millennia of conflict, traditional kinetic war fighting is highly refined and captured in mature and vetted military doctrine. Cyber operations, however is constantly evolving and affords tremendous benefits alongside significant challenges. Nations around the world have raced to build cyber organizations and capabilities, but are struggling to employ cyber operations to their benefit. Some have stumbled, while others have had dramatic impact on the battlefield and global geopolitics. At the same time, companies and even individuals are now facing nation state and nation state enabled threat actors in cyberspace while their governments remain apparently powerless to protect them. Whether you are a network defender or cyber operator, On Cyber is a seminal book and the lessons you learn will help you do your job better. Importantly, network defenders will understand how nation-state threat actors think, organize, operate, and target your organization. Cyber operators will gain a glimpse into the future of cyber doctrine. The authors are perhaps the best two people to author such an ambitious work, having served on the faculty of West Point for a combined 20 years, participated in military cyber operations and training, helped architect the U.S. Army's Cyber Branch, and together possess more than 50 years of military experience.