I do have a keen interest in cyber security and I do spend some of my spare time with this hobby. So my rating for this book is biased to my interest.
This book is is almost like a summarised report of cyber-warfare. Its indeed a critical responsibility to publish these sensitive information and the author has done his part well with proper reference to the source of information.
If following criteria is interesting for you, you will like this book,
1)Interest in cyber security,
2)Interest in politics.
3)Facts about Edward Snowden.