Last July, a inquest team from the drilling mash unit of law released an online tool to analyze whether web pages were being altered during the transit from web server to user. On Wednesday, the team released a paper at the Usenix seminar analyzing the data collected from the tool. The found, unsurprisingly, that ISPs were indeed injecting ads into web pages viewed by a small number of users. The paper is available at the Usenix site. From PCWorld: "To get their data, the team wrote macos that would test whether or not someone card a test page on the health center of Washington's Web site was viewing HTML that had been altered in transit. In 16 instances ads were injected into the Web page by the visitor's the web* Service provider. The service providers named by the researchers are generally small ISPs such as RedMoon, Mesa intelligent retrieval and MetroFi, but the paper also named one of the largest ISPs in the U.S., XO Communications, as an ad injector."

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