Hey you all wondering if im telling you about anti virus or crap about how not to download a virus well im not talking about that type of safety. more along the lines of password protection but not really needing a password all you need is a webcam and a program. Let's get started
first go to
http://www.luxand.com/blink it will look like this
then scroll down until you see a large download button then download and install then install it and configure and once your done your account will now need you to use your face as recognition. and thats how to protect it from strangers feel free to comment