Today's world is in flux. Competition between the great powers is back on the agenda and governments around the world are turning to secret statecraft and the hidden hand to navigate these uncertain waters. From poisonings to electoral interference, subversion to cyber sabotage, states increasingly operate in the shadows, while social media has created new avenues for disinformation on a mass scale. This is covert action: perhaps the most sensitive - and controversial - of all state activity. However, for all its supposed secrecy, it has become surprisingly prominent - and it is something that has the power to affect all of us. In an enthralling and urgent narrative packed with real-world examples, Rory Cormac reveals how such activity is shaping the world and argues that understanding why and how states wield these dark arts has never been more important.