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Meta injecting code into websites visited by its users to track them, research says - The Guardian

Meta injecting code into websites visited by its users to track them, research says - The Guardian

Aug 11, 2022 53 secs

Owner of Facebook and Instagram is using code to follow those who click links in its apps, according to an ex-Google engineer.

Meta, the owner of Facebook and Instagram, has been rewriting websites its users visit, letting the company follow them across the web after they click links in its apps, according to new research from an ex-Google engineer.

The two apps have been taking advantage of the fact that users who click on links are taken to webpages in an “in-app browser”, controlled by Facebook or Instagram, rather than sent to the user’s web browser of choice, such as Safari or Firefox.

For normal browsers, and most apps, the tool detects no changes, but for Facebook and Instagram it finds up to 18 lines of code added by the app.

In the company’s description of the Meta Pixel, which is usually voluntarily added to websites to help companies advertise to users on Instagram and Facebook, it says the tool “allows you to track visitor activity on your website” and that it can collect associated data

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