By following step by step some of the most resounding cases of data leaks of the last ten years, Weapons of Mass Destabilization reveals the ambiguity of a technique which promotes transparency, but can only work while undercover, at the risk of leaving itself wide open to manipulation or even turning into an actual weapon of war. From Tel Aviv to New Delhi, via the United States and Russia, Philippe Vasset and Pierre Gastineau pull back the curtain on the never-before-explored world of large-scale cyberattacks.