(LaptopAlarm's laptop anti-theft alarm software finds the comparison effective. As long as your laptop is moved by others, it will issue a very loud alarm like a security door or a super security viewing door, even if your laptop is silent. It will make a sound and be content to be heard by you or those around you. This little software of only about 200K can only run on Windows systems (Mac seems to be easier to steal...), start it and click LockComputer)