TAlert(Thief Alert) alerts you if someone is trying to steal your Mac. Before you leave your desk / cube at work, just enable the TAlert app, and if anyone tries to steal your Mac, touches your Macs keyboard or TrackPad, or just unplug Macs AC Adapter, the Security System immediately activates and alarm goes off.
This not only surprises the person who is trying to steal it, but also alerts nearby people. Just like a car alarm. If you are nearby, you can run back at the alarm.
There are 3 modes including Touches, and screen-close and unplug AC adapter.