According to CNET News.com, in their recent article on the matter, simple queries on Google can turn up some sites that have posted credit card information. And although some of the information is no doubt defunct, CNET was able to verify that some of the information was up to date and valid.
"There is no shortage of ways to search Google to find such data. Whole sites spell out how to search for financial information and describe software vulnerabilities and vulnerable configurations on Internet machines."
Google has declined to comment at this time.