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Facebook tracks everyone who visits its site, including people who don't have an account, and even continues to track users and non-users who have opted out of targeted ads, researchers at two Belgian universities have found. Report Says Facebook is Tracking All Site Visitors, Violating EU Law [pcadvisor.co.uk]
It turns out, for instance, that Facebook places a cookie on the browser of anyone who visits a Web page belonging to the facebook.com domain, even if the visitor is not a Facebook user, the report found. The cookie placed by Facebook is called "datr" which contains a unique identifier and has an expiration date of two years.
Facebook users also get a range of additional cookies which uniquely identify the user.
Once these cookies have been set, Facebook will in principle receive information from them during every subsequent visit to a website containing a Facebook social plug-in. These cookies will give Facebook information like the URL of the Web page that was visited as well as information about the browser and operating system, the report said.
Led by Dutch regulators, the probes have also pulled in Germany and Belgium. That differs from past investigations into Facebook, which typically were conducted solely in Ireland, which is home to the company's European headquarters. But countries in the European Union are increasingly joining forces to challenge US companies they believe may be running afoul of European privacy laws.
If the investigations move forward, Facebook could face a fine in the millions of euros and be ordered to modify its business practices in Europe.
joined:Mar 26, 2015
The problem is you have a right not to be tracked and should by law be able to opt out.
(OMG OMG websites can see your IP and your browser and your language and your operating system and...)