From blackhat.com:

It's all over the news: Dan Kaminsky found a major, fundamental flaw in DNS that renders practically any name server vulnerable. He'll be speaking in depth on this discovery in August at BH USA, but he's agreed to discuss it a few weeks early. Get your best questions ready - the webcast will be live Thursday, July 24 at 1pm PT/4pm ET.

Join Dan Kaminsky, director of penetration testing for IOactive; Jerry Dixon, former director of the National Cyber Security Division at DHS; and other experts to discuss the largest synchronized security update in the history of the Internet. Dan will tell the story behind the discovery, and the process of creating and deploying the fix.

Go to blackhat.com to register.