threatpost
http://threatpost.com/blogs/many-sites-using-flash-cookies-silently-track-users-117
The paper, titled “Flash Cookies and Privacy,” is the work of a small group of researchers from Berkeley, Clemson, Louisiana State and Jacksonville State. One of the authors is Chris Jay Hoofnagle, a lawyer well-known in the security and privacy communities for his work at EPIC and elsewhere on privacy issues. Some of the sites employing the Flash cookie technique include federal government sites, the authors found.