Very few people (certainly not the smart, savvy, people who read PCWorld articles) run their computers without up-to-date firewall and antivirus software. Most users know better than to click a message from "Bank of Amerika" that tells them "Your account is much suspect of risk, please input number for verify." Regardless, there's always a new security hole, exploit, or social-engineering trick that can catch even the intelligent and cautious in a moment of weakness. Another threat is the possibility that someone might gain physical access to your computer -- whether it's a laptop thief, a sneaky coworker with dubious intent, or an aggressive lawyer for the RIAA. This feature discusses several ways to keep your digital valuables safe, even if someone is prowling around your house.