Not only has Verisign betrayed their trust by hijacking all the .NET and .COM typos, they've also tossed out the privacy of every fumblefingered netizen by putting a web-bug on their SiteFinder page, so that anyone whose session is stolen by Verisign is thereafter marked with a tracker-cookie that is used to spy on you as you traverse the Web.
The query string of the URL contains the usual things such as the Web page URL, the referring URL, browser type, screen size, etc. This query string is built on the fly by about 50 lines of JavaScript embedded in the Verisign Web page.
The Omniture server sets a cookie so that people can be watched over time to see what typos they are making.
(via Dan Gillmor)