Apple has got you covered with a $49 ($69 for the wireless version) security device known as the Mighty Mouse. Using a Mighty Mouse virtually ensures your computer will be inaccessible to just about any jealous PC-using evildoer who may wish to do your Mac harm.
Mac fans can now rejoice. Purchase a Mighty Mouse and PC users will be too confused at your computer to do anything. I admit, I’d probably think of it as a bar of soap before I’d come to the realization that it’s a peripheral.
Source: Macenstein