This is largely due to XP SP2 making the Windows Firewall on by default and Wi-Fi. Since the release of Windows XP SP2, there have been significantly less network-based Internet worms (Conficker being a notable and recent exception). Instead of the usual top ten lists that are all-too-common with predictions for the new year, I have just one: 2010 will be the year of desktop applications handling untrusted data in sandboxed processes, and it will be about time.
