The classic image of a hacker is an IT specialist of the highest class, who knows several programming languages, understands the device of security systems and in two accounts will select a password to your mailbox. He studies systems in order to find vulnerabilities in them and make them work to his advantage. However, it is possible to hack not only computers, but also social systems: from tax legislation to financial markets and politics. In his book, legendary cryptographer, cybersecurity specialist and Harvard professor Bruce Schneier talks about how powerful, but unknown to the public, hackers help rich and influential people become even richer and manipulate people’s minds. In addition, he gives a huge number of examples of social systems hacks: hacks of tariff plans for long-distance calls, ATMs, passenger loyalty programs, manipulations in the elite real estate market and many others. After reading it, you will learn how to notice hacking, and you will not be able to look at the world as before.