I'm on the computer one day when my web cam activates. It snaps a picture. A few seconds later my face is displayed on the screen with a notice that my computer is locked until I pay a $300 fine (and it provides the instructions which involve getting some type of card from Walmart). There is no way to unlock the computer. I look it up and this virus is a common scam. It tries to blackmail you into wiring money to some place. Even if you are dumb enough to do this it will not unlock your computer. So I take my computer into the store and have them wipe it and reinstall everything. Last night about 2AM I start to hear weird music and then voices talking like a telephone conversation in some foreign language. I poke around the house until I discover it is coming from the same computer. None of the programs are running but I'm still hearing it. Creepy! Like something out of Paranormal Activity.