Microsoft Curbs Wi-Fi Location Database
suraj.sun writes "Microsoft has ceased publishing the estimated locations of millions of laptops, cell phones, and other devices with Wi-Fi connections around the world after a CNET article on Friday highlighted privacy concerns. The decision to rework Live.com's geolocation service comes following scrutiny of the way Microsoft made available its database assembled by both Windows Phone 7 phones and what the company calls 'managed driving' by Street View-like vehicles that record Wi-Fi signals accessible from public roads. Every Wi-Fi device has a unique ID, sometimes called a MAC address, that cannot normally be changed."
Did Google even publish their wifi data? I hope Microsoft gets the same attention Google is getting.
What doesn't kill you only delays the inevitable
Yes, the MAC address is normally burned into the card (although it may be changeable when flashing the firmware). However, some drivers allow you to specify a MAC address, thus when you load the driver (and activate the card), the MAC address is over-ridden. You might want to do this (for instance) to associate a specific MAC address with a specific PC, not the network card inside it, so if the NIC is replaced, the PC retains the same MAC address.