Cybercrime can threaten any entity, from small businesses to entire governments. In this guide to cybersecurity, readers will learn about cryptocurrencies, how to spot digital deception, and how to deal with cybermobs and trolls. On a global scale, cyberspying by international intelligence agencies can range from intellectual property theft to hacking into infrastructure and military, while whistleblowers are sometimes hailed as defenders of free speech and sometimes vilified as traitors and threats to security. All of these issues are addressed with case studies, practical tips, and infographics.