The fight for Internet security has often been referred to as a duel between the white hats and the black hats. Like a marshal nailing a "Most Wanted" sign to a post, Microsoft Corp., in a joint press conference with the Federal Bureau of Investigation, Secret Service and Interpol, pledged rewards of $250,000 each for information leading to the capture of the Blaster and SoBig.F creators. Bluetooth is a short-range wireless technology that relies on radio waves to transmit data between devices. Microsoft's Internet Connection Firewall is surprisingly easy to get up and running.