Intro
If you've watched any TV in the U.S. lately, you've probably seen a commercial where nice, friendly folks are saying things like "I want my computer to be infected by viruses.", "I want all of my family photos to disappear without a trace." or "I want my laptop to sound like a Yeti."
Naturally, none of these folks honestly want that sort of pain, but by not taking steps to protect themselves, they're letting in bad guys. Understand, that like your home, car, or personal savings account, you can't just leave it wide open and trust in the kindness of strangers. Sadly, most strangers aren't really as nice as you'd hope. In fact, this probably explains why banks switched off keeping their money in a big bag out in the middle of an empty field after the first few days.