Rob wrote in with a link to a CBR Online article discussing
drive-by pharming, a new exploitation technique developed by Indiana University and Symantec Corporation. While it's not known if the technique is in use 'in the wild', the exploit could easily co-opt the web-browsing habits of a user that had not properly configured their router.
"The attack works because most of the popular home routers ship with default passwords, default internal IP address ranges, and web-based configuration interfaces. The exploit is a single line of JavaScript loaded with a default router IP address, a default password, and an HTTP query designed to reconfigure the router to use the attacker's DNS servers." The article goes on to discuss several related and more advanced techniques related to this one, which security companies will have to keep in mind to guard against future attacks.