From the Register
Sites pulling sneaky Flash cookie-snoop: Academics fret over privacy threat
By John Leyden
Many websites are using Flash-based cookies to track users, but often omit to mention this in their privacy policies.
US academics have documented the little-known tracking technology and its use in practice in a paper called Flash Cookies and Privacy. Browser-based cookies constitute a well understood and widely deployed technology that poses serious questions about privacy, depending on its usage....
The research was carried out by a team of five researchers including Ashkan Soltani for the [School of Information] at University of California, Berkeley and Chris Jay Hoofnagle from Berkeley's school of law.