Think you can hide behind the privacy of an "unlisted" cell phone number? Think again. Maybe you believe you don't need security software on a Mac or iPad. You'd swear that Firefox is the safest browser in town. Wrong on both counts.
Most of us don't think about security for our digital devices until something goes wrong, or it's time to renew an anti-virus subscription. But what the security experts like to call the threat landscape changes all the time, and keeping up is hard to do. So we'll save you some time. Here are five current facts that you probably don't know about digital security —but should.