Facebook Beacon Privacy Issues Worse Than Previously Thought?
An anonymous reader writes "Further developments in the Facebook Beacon affair ... According to PC World, a Computer Associates researcher claims that Beacon, when installed on participating sites, is sending data about users' activity back to Facebook, even when a user is logged out of Facebook - despite Facebook's claims to the contrary."
How do third party websites know about an Facebookm account when a user is logged out of Facebook?