The website for the Dolphin Stadium, the field the Superbowl will be played on has been hacked. The malicious code which was found initiates a Trojan horse and keylogging abilities. The code was inserted into the header of the site, and once visitors entered it, it was designed to execute a script that attempts to exploit two known vulnerabilities.
Many Super Bowl sites were linking to the stadium site, and that increased the chances of users being infected. The site is commonly used for checking on seating charts and directions.
On February 2nd, researchers from Websense announced the site was cleaned of malware, and was being monitored.