Microsoft appears to be using its smash "Halo 2" game as a vehicle to crack down on mod chips and other hacks of its Xbox video game console. ...

Hundreds of Xbox owners have reported in online forums in recent days that they were banned from Xbox Live, Microsoft's online gaming service, after trying to play "Halo 2" online with a modified console.

A Microsoft representative would not specify which additional security measures, if any, have been added to Xbox Live around the "Halo 2" launch. "Microsoft listens carefully to the Xbox Live community and reserves the right to take steps necessary to preserve the integrity of the user experience," the representative said in a statement. "Our goal is to provide our users with secure, consistent and fair online game play. Users are not permitted to manipulate the system to the detriment of others.""

Mod chips," gray-market add-ons that allow game consoles to run imported discs, pirated games and homemade software, began circulating for the Xbox shortly after the game machine went on sale four years ago. Hackers who equip their Xboxes with mod chips and other upgrades, such as bigger hard drives, have gotten the consoles to perform all sorts of unauthorized tricks, including running Linux software and serving as digital media
enters.
Microsoft and other hardware makers have long fought against mod chips, chiefly because those chips abet game piracy. The software giant's activities culminated in a Justice Department raid two years ago in which federal lawmakers took over a Web site used to sell mod chips and swap illegally copied games.