Wie werden die Online-Aktivitäten von Internetnutzern überwacht? Durchschnittlich 2230 Unternehmen übersandten Daten von Nutzern an Facebook. Zu diesem Ergebnis kommt eine Untersuchung von Comsumer Reports: Don Marti, Fengyang Lin, Matthew Schartz, Ginny Fahs: Who shares your information with Facebook? Sampling the Surveillance Economy in 2023. Die Untersuchung wird zusammenfassend vorgestellt von Jon Keegan: Each Facebook User Is Monitored by Thousands of Companies. A Consumer Reports analysis looks at who is sending information about your online activity to Facebook. CR Consumer Reports 17.01.2024
Dazu wurden die Daten von 709 Facebook-Nutzern der letzten 3 Jahre ausgewertet. “the study was able to examine a form of tracking that is normally hidden: so-called server-to-server tracking, in which personal data goes from a company’s servers to Meta’s servers. Another form of tracking, in which Meta tracking pixels are placed on company websites, is visible to users’ browsers. ”
Dabei werden
Dabei sind zweierlei Daten enthalten: “Custom audiences allow advertisers to upload customer lists to Meta, often including identifiers like email addresses and mobile advertising IDs. These customers, and so-called look-alike audiences made up of similar people, can then be targeted with ads on Meta’s platforms.
The other category of data collection, “events,” describes interactions that the user had with a brand, which can occur outside of Meta’s apps and in the real world. Events can include going to a page on a company’s website, leveling up in a game, going to a physical store, or purchasing a product. These signals originate from Meta software code included in many mobile apps, their tracking pixel, which is included on many websites, and from server-to-server tracking, where a company’s server passes data to a Meta server.”
Die hier u.a. eingesetzte Technik der Meta-Pixel wird auf einer anderen Seite analysiert: Pixel Hunt. Millions of Meta’s invisible pixels are embedded on websites across the internet. The Markup is investigating exactly what those pixels track about the public. The Markup