Book excerpt: This book explores the geopolitics of the global cyber space to analyse India’s cyber security landscape. As conflicts go more online, nation-states are manipulating the cyber space to exploit each other’s dependence on information, communication and digital technologies. All the major powers have dedicated cyber units to breach computer networks, harvest sensitive data and proprietary information, and disrupt critical national infrastructure operations. This volume reviews threats to Indian computer networks, analyses the country’s policy responses to these threats, and suggests comprehensive measures to build resilience in the system. India constitutes the second largest internet user base in the world, and this expansion of the user base also saw an accompanying rise in cyber crimes. The book discusses how the country can protect this user base, the data-dependent critical infrastructure, build resilient digital payment systems, and answer the challenges of the dark net. It also explores India’s cyber diplomacy, as an emerging economy with a large IT industry and a well-established technological base. Topical and lucid, this book as part of The Gateway House Guide to India in the 2020s series, will be of interest to scholars and researchers of cyber security, digital diplomacy, foreign policy, international relations, geopolitics, strategic affairs, defence studies, South Asian politics and international politics.