 A major theme in the discussion of Internet privacy revolves around the use of cookies (Palmer 2005). Cookies are small pieces of data that web sites store on the user’s computer, in order to enable personalization of the site. However, some cookies can be used to track the user across multiple web sites (tracking cookies), enabling for example advertisements for a product the user has recently viewed on a totally different site. Again, it is not always clear what the generated information is used for. Laws requiring user consent for the use of cookies are not always successful in terms of increasing the level of control, as the consent requests interfere with task flows, and the user may simply click away any requests for consent (Leenes &amp; Kosta 2015). Similarly, features of social network sites embedded in other sites (e.g. “like”-button) may allow the social network site to identify the sites visited by the user (Krishnamurthy &amp; Wills 2009).