Update your antivirus. Change your password every month. Don't broadcast your SSID. We all know the many steps you can take to make sure your PC and the data on it are safe from viruses, trojans, and other intrusions. But come on… how many of us actually practice what we preach here? Once you know a bit about PCs, it's easy to pick and choose which security steps you'll take and which you'll ignore. So how much do you really care about PC security? Take our quiz and find out…