Open Source Anti-theft Software for Mac, PC & Mobile – Prey
Prey is an open source anti-theft software for Mac, PC & Mobile that lets you keep track of your phone or laptop at all times, and will help you find it if it ever gets lost or stolen.
Prey is 100% geolocation aware, it uses either the device’s GPS or the nearest WiFi hotspots to triangulate and grab a fix on its location.
It can take a picture of the thief with your laptop’s webcam so you know what he looks like. It’s lightweight, open source software, and free for anyone to use.