Update: US congressmen ask FTC to investigate Facebook cookies. Facebook has five cookies that persist: datr, lu, p, L, and act. There are also two session cookies that persist after the logout ...

Facebook has admitted its cookies could have been used to track people after they had logged out of the social-networking service, but said it has now remedied the problem. On Wednesday, Facebook ...

Nik Cubrilovic, the Australian blogger who sensationally revealed last week that Facebook cookies were tracking users even when they weren’t using the social network, has just claimed the cookies are ...

European data protection authorities want Facebook to stop using cookies to track people who don’t have a Facebook account. As part of a case brought by the Belgian ...

Facebook this week issued a fix for Web cookies that continued to track browser activity after a user had logged out of the social-networking site, according to blogger and hacker Nik Cubrilovic.

Note: Facebook asks us to clarify that cookies specific to a user's account are deleted when they log out of Facebook, so the company does not receive personally identifiable cookie information when ...