The Infinity Ward Forums describe plans for a new security patch for Modern Warfare 2 for all platforms. Meanwhile, Robert Bowling tweets a confirmation that there will be no more DLC for the military shooter sequel: "No, we have no additional DLC planned for #MW2." Here's word on the security patch:

The latest patch for Modern Warfare 2 has finished production and is now going through internal quality assurance. This new title update will address security issues that have affected online play.

We plan to release this update for all platforms (Playstation 3, Xbox 360, and PC). No release date is set at this time. Once an ETA is established, it will be posted here.

In addition to the security updates, this patch will also address a small geo exploit on the map Fuel, which players exploited in order to get inside a rock on the outskirts of the map.