The Internet was developed at the height of the Cold War as a way to maintain a robust communication system in the event of a nuclear attack. It is ironic, then, that that same technology may now pose security threats of a wholly different nature - namely "cyberterrorism." In this seminar, we contrast the doomsday myths popularized by movies such as War Games with more mundane scenarios such as total disruption of electronic commerce. Along the way, we address questions such as: Can a few individuals disable the entire Internet? How does modern cryptology allow people to communicate secretly and anonymously? Can hackers launch missiles or uncover blueprints for nuclear power plants? Can they do it from remote computers on the other side of the world? And terrorism is not the only reason to be afraid of the Internet. We will also investigate other computer-security issues including spam; computer viruses and worms; identity theft; and cyberstalking of the MySpace-Facebook generation. Meanwhile, protecting ourselves from cyberterrorism may introduce us to other risks. For the other side of the coin, we go back to 1948, earlier in the Cold War, when George Orwell penned his now classic dystopian vision of the future in which the government (a.k.a. "Big Brother") was able to observe just about every move its citizens made. With our reliance on cell phones, text messages, and electronic mail, have we, nearly sixty years later, unwittingly signed ourselves up to live in an Orwellian society? Or can other technologies keep 1984 at bay? Our goal is to investigate if and how society can strike a balance so as to achieve computer security without substantially curtailing rights to free speech and privacy.