Tyler Close considers that the old client-server security model is no longer viable and a new security web model is needed, presenting tools and techniques to secure the social web apps of today.
Tyler Close works on Web Application security at Google, after spending 5 years at Hewlett-Packard Labs as a security researcher. Much of his work focuses on finding easier ways to implement and use applications that have useful security properties. He has published papers at the Financial Cryptography conference, WWW conference, NDSS, BlackHat, and others.
QCon is a conference that is organized by the community, for the community.The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community.QCon is designed with the technical depth and enterprise focus of interest to technical team leads, architects, and project managers.
Browser extension for security, simular to the file upload.
Hope there will be some more info on the subject, because it's of great importance and and simular technology by in IE was pitched in the end.
There is a W3C draft for Web Introducer
and google hosts ofcourse info on it