Most computer-savvy people know about viruses and how to prevent an infection. But what are the most destructive viruses of all time? See more »

The United States government is pretty much on your side when it comes to Internet browsing freedom. But some circumstances merit Big Brother's watchful eyes. See more »

People traveling to the United States have grown accustomed to tight security. But can the government really take your laptop and keep it indefinitely? See more »

What does it take to cripple a nation? Someone with solid computer skills, for a start. Nefarious hackers wield a lot of power with a few keystrokes, and the United States is taking action. See more »

In "Live Free or Die Hard," Detective John McLane fights a group that carries out attacks using the Internet. Is it really possible for hackers to cause economic or physical devastation in the United States? See more »

No, this quiz isn't about scanning fingerprints -- it's about Web technologies used to prevent copyright infringement and track your online identity. See how much you know. See more »

Computers can make life easier, but they also can put your private information at risk. Find out how much you know -- or don't know -- about computer security by taking our quiz. See more »

If George Orwell's book "1984" creeped you out, you'll want to read the facts about the FBI's Operation Carnivore. It gave agents the permission and technology to access to the online and e-mail activities of suspected criminals. See more »

Could your e-mail be used against you in a court of law? Maybe. Computer forensics searches, preserves and analyzes information on computer systems for potential evidence in a trial. See more »

Computer viruses range from pesky to outright dangerous. Some just display a message, while others erase your entire hard disk. Clicking on what looks like a harmless e-mail message can lead to hours of recovery efforts, if not irreparable damage. See more »