People among us or newbie hackers change their IP address and thinks they are anonymous on internet but one thing they forgot that they can be tracked down with MAC address which is still there non-spoofed. So what to do then? It’s practically impossible to change your MAC address but yes virtually it’s possible :).
Here is a application called SMAC that can help you to spoof your MAC address to maintain your anonymity on internet.
SMAC is a powerful, yet easy to use MAC Address Changer (Spoofer) for Windows 7, XP, 2003, VISTA, 2008 systems, regardless of whether the manufacturers allow this option or not.
Change MAC Address in 3 clicks, validate MAC Address generate Random Address, view MAC Address, view complete network adapter information, 1-click network adapter restart, filter active and inactive adapters, load MAC Address List*, show MAC change history.
SMAC does not change the hardware burned-in MAC addresses. SMAC changes the "software based" MAC addresses, and the new MAC addresses you change will sustain from reboots. MAC helps people to protect their privacy by hiding their real MAC Addresses in the widely available wifi Wireless Network. SMAC also helps Network and IT Security professionals to troubleshoot network problems, test Intrusion Detection / Prevention Systems (IDS/IPS,) test Incident Response plans, build high-availability solutions, recover (MAC Address based) software licenses, and etc.