Cybersecurity—also known as “information security” or “Internet security”—studies how individuals, companies, governments, and criminals attack and defend from each other on digital devices and computer networks. This course will begin with a technological overview of the Internet, cryptography, and computer hacking. It will then address the technological, legal, and policy dimensions around a wide range of current cybersecurity issues across the following categories: (1) cybersecurity in the private sector, (2) cybercrime and digital investigations, and (3) the international dimensions of cybersecurity.