Facebook tracks the web browsing of everyone who visits a page on its site even if the user does not have an account. The report, from researchers at the Centre of Interdisciplinary Law and ICT (ICRI) and the Computer Security and Industrial Cryptography department (Cosic) at the University of Leuven, and the media, information and telecommunication department (Smit) at Vrije Universiteit Brussels, was commissioned after an original draft report revealed Facebook’s privacy policy breaches European law.
The researchers now claim that Facebook tracks computers of users without their consent, whether they are logged in to Facebook or not, and even if they are not registered users of the site or explicitly opt out in Europe. Facebook tracks users in order to target advertising.
The issue revolves around Facebook’s use of its social plugins such as the “Like” button, which has been placed on more than 13m sites including health and government sites.
Facebook places tracking cookies on users’ computers if they visit any page on the facebook.com domain, including fan pages or other pages that do not require a Facebook account to visit.
When a user visits a third-party site that carries one of Facebook’s social plug-ins, it detects and sends the tracking cookies back to Facebook - even if the user does not interact with the Like button, Facebook Login or other extension of the social media site.
With just 1.65 billion people now on Facebook every month and 3.17 billion people using the internet globally last year this move will greatly expand Facebook’s potential audience. Facebook already made $17 billion in ad revenue last year so by increasing their user base the company will surely increase that margin by a considerable amount.
