Why do nations break into one another's most important computer networks? There is an obvious answer: to steal valuable information or to attack. But this isn't the full story. This book draws on often-overlooked documents leaked by Edward Snowden, real-world case studies of cyber operations, and policymaker perspectives to show that intruding into other countries' networks has enormous defensive value as well. Two nations, neither of which seeks to harm the other but neither of which trusts the other, will often find it prudent to launch intrusions. This general problem, in which a nation's means of securing itself threatens the security of others and risks escalating tension, is a bedrock concept in international relations and is called the 'security dilemma'. This book shows not only that the security dilemma applies to cyber operations, but also that the particular characteristics of the digital domain mean that the effects are deeply pronounced. The cybersecurity dilemma is both a vital concern of modern statecraft and a means of accessibly understanding the essential components of cyber operations.

"A must-read...It reveals important truths." -Vint Cerf, Internet pioneer "One of the finest books on information security published so far in this century-easily accessible, tightly argued, superbly well-sourced, intimidatingly perceptive." -Thomas Rid, author of Active Measures Cyber attacks are less destructive than we thought they would be-but they are more pervasive, and much harder to prevent. With little fanfare and only occasional scrutiny, they target our banks, our tech and health systems, our democracy, and impact every aspect of our lives. Packed with insider information based on interviews with key players in defense and cyber security, declassified files, and forensic analysis of company reports, The Hacker and the State explores the real geopolitical competition of the digital age and reveals little-known details of how China, Russia, North Korea, Britain, and the United States hack one another in a relentless struggle for dominance. It moves deftly from underseas cable taps to underground nuclear sabotage, from blackouts and data breaches to election interference and billion-dollar heists. Ben Buchanan brings to life this continuous cycle of espionage and deception, attack and counterattack, destabilization and retaliation. Quietly, insidiously, cyber attacks have reshaped our national-security priorities and transformed spycraft and statecraft. The United States and its allies can no longer dominate the way they once did. From now on, the nation that hacks best will triumph. "A helpful reminder...of the sheer diligence and seriousness of purpose exhibited by the Russians in their mission." -Jonathan Freedland, New York Review of Books "The best examination I have read of how increasingly dramatic developments in cyberspace are defining the 'new normal' of geopolitics in the digital age." -General David Petraeus, former Director of the CIA "Fundamentally changes the way we think about cyber operations from 'war' to something of significant import that is not war-what Buchanan refers to as 'real geopolitical competition.'" -Richard Harknett, former Scholar-in-Residence at United States Cyber Command

An Open Letters Review Best Book of the Year "One of the finest books on information security published so far in this century-easily accessible, tightly argued, superbly well-sourced, intimidatingly perceptive." -Thomas Rid, author of Active Measures "The best examination I have read of how increasingly dramatic developments in cyberspace are defining the 'new normal' of geopolitics in the digital age. Buchanan...captures the dynamics of all of this truly brilliantly." -General David Petraeus, former Director of the CIA and Commander of Coalition Forces in Iraq and Afghanistan Few national-security threats are as potent-or as nebulous-as cyber attacks. Ben Buchanan reveals how hackers are transforming spycraft and statecraft, catching us all in the crossfire, whether we know it or not. Ever since WarGames, we have been bracing for the cyberwar to come, conjuring images of exploding power plants and mass panic. But while cyber attacks are now disturbingly common, they don't look anything like we thought they would. Packed with insider information based on interviews, declassified files, and forensic analysis of company reports, The Hacker and the State sets aside fantasies of cyber-annihilation to explore the real geopolitical competition of the digital age. Tracing the conflict of wills and interests among modern nations, Ben Buchanan reveals little-known details of how China, Russia, North Korea, Britain, and the United States hack one another in a relentless struggle for dominance. His analysis moves deftly from underseas cable taps to underground nuclear sabotage, from blackouts and data breaches to billion-dollar heists and election interference. Buchanan brings to life this continuous cycle of espionage and deception, attack and counterattack, destabilization and retaliation. He explains why cyber attacks are far less destructive than we anticipated, far more pervasive, and much harder to prevent. With little fanfare and far less scrutiny, they impact our banks, our tech and health systems, our democracy, and every aspect of our lives. Quietly, insidiously, they have reshaped our national-security priorities and transformed spycraft and statecraft. The contest for geopolitical advantage has moved into cyberspace. The United States and its allies can no longer dominate the way they once did. The nation that hacks best will triumph.