Comment Re:Traceability? (Score 1) 50
I use the free tracking service preproject.com and it places my laptop within 300ft no matter how I try to hide it. HOW?
I'm pretty sure Prey uses a database of known wifi networks and their locations. For example, the Google Maps cars don't just take pictures, they also record a fingerprint of every 802.11 network they encounter; SSID, coordinates, the router's MAC address. There are public crowdsourced databases that do this, too. If you power up your computer and you're in range of a wireless network that's in one of these databases, Prey will locate you that way.