脸谱网是一个非常强大的公司，利用几乎20亿个人的自我披露和收集的个人数据。它的用户基数比任何国家的人口都大。该公司在网上无处不在，跟踪和分析用户和非用户。破解代码的关键在于看这台巨型机器的内部，以及脸谱网是如何把你的思想和行为变成利润的，不管你喜欢与否。这也不仅仅是单向交易。破解密码，也解释了脸谱网如何利用大量的Web数据操纵你的想法和感觉，以及所有的行为都是在脸谱网的独家利益，伪装成“社区”。社会影响这一公司基本上控制了整个网络世界的见解和经验是什么，极个性化的、有针对性的行为和社会工程的规模上从未见过的吗？

  Facebook is an enormously powerful corporation, harnessing both the self-disclosed and gleaned personal data of almost 2 billion people. Its user-base is larger than the population of any country. The company is all pervasive online, tracking and profiling users and non-users alike. Cracking the Code looks at the insides of this giant machine and how Facebook turns your thoughts and behaviours into profits—whether you like it or not. And it's not just a one-way transaction either. Cracking the Code also explains how Facebook uses vast troves of web data to manipulate the way you think and feel, as well as act—all in the sole interests of Facebook, masquerading as "community." What are the social implications of this—when one company basically controls the insights and experiences of the entire online world, with extremely personalised and targeted social and behavioural engineering on a scale never before seen?