April 2, 2007 - Fortify Software Documents Pervasive and Critical Vulnerability in Web 2.0 It looks like, in addition to the privacy risks of voluntarily revealing information through Web 2.0 sites, weaknesses in the most common frameworks will enable malicious attackers to gather even non-public data from these sites.

Web 2.0 generally refers to web sites that are either web applications or are based on community content. In either case they involve the users uploading substantial amounts of possible sensitive personal information to the sites. I predict that a great deal of damage may result from this in the long run.